Number factor calculator. List of factors of numbers from 1 to 100.

Calculator of factors of number x. Count of factors. Sum of factors (excluding x) and (including x).

Factor Calculator

You can calculate the factors of the natural number up to two billion.

X = 
Factors:
Count of factors:
Sum of factors (including X):
Sum of factors (excluding X):
If a number has exactly two distinct positive factors, which are itself and 1 is a prime number.

Calculate the factor of a number

The factors of a natural number are the numbers that can divide it into an exact division.

7 is a factor of 14 because 14 / 7 = 2 is an exact division.
10 is a factor of 20 because 20 / 10 = 2 is also an exact division.

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List of factors of numbers from 1 to 100.

Number Factors Count Sum Prime factor tree
The factors of 1 1 Count 1 Sum 1 tree
The factors of 2 1, 2 Count 2 Sum 3 tree
The factors of 3 1, 3 Count 2 Sum 4 tree
The factors of 4 1, 2, 4 Count 3 Sum 7 (3) tree
The factors of 5 1, 5 Count 2 Sum 6 (1) tree
The factors of 6 1, 2, 3, 6 Count 4 Sum 12 (6) tree
The factors of 7 1, 7 Count 2 Sum 8 (1) tree
The factors of 8 1, 2, 4, 8 Count 4 Sum 15 (7) tree
The factors of 9 1, 3, 9 Count 3 Sum 13 (4) tree
The factors of 10 1, 2, 5, 10 Count 4 Sum 18 (8) tree
The factors of 11 1, 11 Count 2 Sum 12 (1) tree
The factors of 12 1, 2, 3, 4, 6, 12 Count 6 Sum 28 (16) tree
The factors of 13 1, 13 Count 2 Sum 14 (1) tree
The factors of 14 1, 2, 7, 14 Count 4 Sum 24 (10) tree
The factors of 15 1, 3, 5, 15 Count 4 Sum 24 (9) tree
The factors of 16 1, 2, 4, 8, 16 Count 5 Sum 31 (15) tree
The factors of 17 1, 17 Count 2 Sum 18 (1) tree
The factors of 18 1, 2, 3, 6, 9, 18 Count 6 Sum 39 (21) tree
The factors of 19 1, 19 Count 2 Sum 20 (1) tree
The factors of 20 1, 2, 4, 5, 10, 20 Count 6 Sum 42 (22) tree
The factors of 21 1, 3, 7, 21 Count 4 Sum 32 (11) tree
The factors of 22 1, 2, 11, 22 Count 4 Sum 36 (14) tree
The factors of 23 1, 23 Count 2 Sum 24 (1) tree
The factors of 24 1, 2, 3, 4, 6, 8, 12, 24 Count 8 Sum 60 (36) tree
The factors of 25 1, 5, 25 Count 3 Sum 31 (6) tree
The factors of 26 1, 2, 13, 26 Count 4 Sum 42 (16) tree
The factors of 27 1, 3, 9, 27 Count 4 Sum 40 (13) tree
The factors of 28 1, 2, 4, 7, 14, 28 Count 6 Sum 56 (28) tree
The factors of 29 1, 29 Count 2 Sum 30 (1) tree
The factors of 30 1, 2, 3, 5, 6, 10, 15, 30 Count 8 Sum 72 (42) tree
The factors of 31 1, 31 Count 2 Sum 32 (1) tree
The factors of 32 1, 2, 4, 8, 16, 32 Count 6 Sum 63 (31) tree
The factors of 33 1, 3, 11, 33 Count 4 Sum 48 (15) tree
The factors of 34 1, 2, 17, 34 Count 4 Sum 54 (20) tree
The factors of 35 1, 5, 7, 35 Count 4 Sum 48 (13) tree
The factors of 36 1, 2, 3, 4, 6, 9, 12, 18, 36 Count 9 Sum 91 (55) tree
The factors of 37 1, 37 Count 2 Sum 38 (1) tree
The factors of 38 1, 2, 19, 38 Count 4 Sum 60 (22) tree
The factors of 39 1, 3, 13, 39 Count 4 Sum 56 (17) tree
The factors of 40 1, 2, 4, 5, 8, 10, 20, 40 Count 8 Sum 90 (50) tree
The factors of 41 1, 41 Count 2 Sum 42 (1) tree
The factors of 42 1, 2, 3, 6, 7, 14, 21, 42 Count 8 Sum 96 (54) tree
The factors of 43 1, 43 Count 2 Sum 44 (1) tree
The factors of 44 1, 2, 4, 11, 22, 44 Count 6 Sum 84 (40) tree
The factors of 45 1, 3, 5, 9, 15, 45 Count 6 Sum 78 (33) tree
The factors of 46 1, 2, 23, 46 Count 4 Sum 72 (26) tree
The factors of 47 1, 47 Count 2 Sum 48 (1) tree
The factors of 48 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 Count 10 Sum 124 (76) tree
The factors of 49 1, 7, 49 Count 3 Sum 57 (8) tree
The factors of 50 1, 2, 5, 10, 25, 50 Count 6 Sum 93 (43) tree
The factors of 51 1, 3, 17, 51 Count 4 Sum 72 (21) tree
The factors of 52 1, 2, 4, 13, 26, 52 Count 6 Sum 98 (46) tree
The factors of 53 1, 53 Count 2 Sum 54 (1) tree
The factors of 54 1, 2, 3, 6, 9, 18, 27, 54 Count 8 Sum 120 (66) tree
The factors of 55 1, 5, 11, 55 Count 4 Sum 72 (17) tree
The factors of 56 1, 2, 4, 7, 8, 14, 28, 56 Count 8 Sum 120 (64) tree
The factors of 57 1, 3, 19, 57 Count 4 Sum 80 (23) tree
The factors of 58 1, 2, 29, 58 Count 4 Sum 90 (32) tree
The factors of 59 1, 59 Count 2 Sum 60 (1) tree
The factors of 60 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 Count 12 Sum 168 (108) tree
The factors of 61 1, 61 Count 2 Sum 62 (1) tree
The factors of 62 1, 2, 31, 62 Count 4 Sum 96 (34) tree
The factors of 63 1, 3, 7, 9, 21, 63 Count 6 Sum 104 (41) tree
The factors of 64 1, 2, 4, 8, 16, 32, 64 Count 7 Sum 127 (63) tree
The factors of 65 1, 5, 13, 65 Count 4 Sum 84 (19) tree
The factors of 66 1, 2, 3, 6, 11, 22, 33, 66 Count 8 Sum 144 (78) tree
The factors of 67 1, 67 Count 2 Sum 68 (1) tree
The factors of 68 1, 2, 4, 17, 34, 68 Count 6 Sum 126 (58) tree
The factors of 69 1, 3, 23, 69 Count 4 Sum 96 (27) tree
The factors of 70 1, 2, 5, 7, 10, 14, 35, 70 Count 8 Sum 144 (74) tree
The factors of 71 1, 71 Count 2 Sum 72 (1) tree
The factors of 72 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 Count 12 Sum 195 (123) tree
The factors of 73 1, 73 Count 2 Sum 74 (1) tree
The factors of 74 1, 2, 37, 74 Count 4 Sum 114 (40) tree
The factors of 75 1, 3, 5, 15, 25, 75 Count 6 Sum 124 (49) tree
The factors of 76 1, 2, 4, 19, 38, 76 Count 6 Sum 140 (64) tree
The factors of 77 1, 7, 11, 77 Count 4 Sum 96 (19) tree
The factors of 78 1, 2, 3, 6, 13, 26, 39, 78 Count 8 Sum 168 (90) tree
The factors of 79 1, 79 Count 2 Sum 80 (1) tree
The factors of 80 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 Count 10 Sum 186 (106) tree
The factors of 81 1, 3, 9, 27, 81 Count 5 Sum 121 (40) tree
The factors of 82 1, 2, 41, 82 Count 4 Sum 126 (44) tree
The factors of 83 1, 83 Count 2 Sum 84 (1) tree
The factors of 84 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 Count 12 Sum 224 (140) tree
The factors of 85 1, 5, 17, 85 Count 4 Sum 108 (23) tree
The factors of 86 1, 2, 43, 86 Count 4 Sum 132 (46) tree
The factors of 87 1, 3, 29, 87 Count 4 Sum 120 (33) tree
The factors of 88 1, 2, 4, 8, 11, 22, 44, 88 Count 8 Sum 180 (92) tree
The factors of 89 1, 89 Count 2 Sum 90 (1) tree
The factors of 90 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 Count 12 Sum 234 (144) tree
The factors of 91 1, 7, 13, 91 Count 4 Sum 112 (21) tree
The factors of 92 1, 2, 4, 23, 46, 92 Count 6 Sum 168 (76) tree
The factors of 93 1, 3, 31, 93 Count 4 Sum 128 (35) tree
The factors of 94 1, 2, 47, 94 Count 4 Sum 144 (50) tree
The factors of 95 1, 5, 19, 95 Count 4 Sum 120 (25) tree
The factors of 96 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96 Count 12 Sum 252 (156) tree
The factors of 97 1, 97 Count 2 Sum 98 (1) tree
The factors of 98 1, 2, 7, 14, 49, 98 Count 6 Sum 171 (73) tree
The factors of 99 1, 3, 9, 11, 33, 99 Count 6 Sum 156 (57) tree
The factors of 100 1, 2, 4, 5, 10, 20, 25, 50, 100 Count 9 Sum 217 (117) tree
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