389622160

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{29879}}^1$

素因数の和:30055

約数の個数: 40

約数和(自身を含む): 911459520

約数和(自身を除く): 521837360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 29879, 59758, 119516, 149395, 239032, 298790, 478064, 597580, 1195160, 2390320, 4870277, 9740554, 19481108, 24351385, 38962216, 48702770, 77924432, 97405540, 194811080, 389622160]

約数ペア:

[(1, 389622160), (2, 194811080), (4, 97405540), (5, 77924432), (8, 48702770), (10, 38962216), (16, 24351385), (20, 19481108), (40, 9740554), (80, 4870277), (163, 2390320), (326, 1195160), (652, 597580), (815, 478064), (1304, 298790), (1630, 239032), (2608, 149395), (3260, 119516), (6520, 59758), (13040, 29879)]