78364820

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{12763}}^1$

素因数の和:13079

約数の個数: 24

約数和(自身を含む): 165115104

約数和(自身を除く): 86750284

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 12763, 25526, 51052, 63815, 127630, 255260, 3918241, 7836482, 15672964, 19591205, 39182410, 78364820]

約数ペア:

[(1, 78364820), (2, 39182410), (4, 19591205), (5, 15672964), (10, 7836482), (20, 3918241), (307, 255260), (614, 127630), (1228, 63815), (1535, 51052), (3070, 25526), (6140, 12763)]