7889780980

素因数分解:

$2^2\times 5^1\times {\mathrm{9241}}^1\times {\mathrm{42689}}^1$

素因数の和:51939

約数の個数: 24

約数和(自身を含む): 16570721160

約数和(自身を除く): 8680940180

約数列:

[1, 2, 4, 5, 10, 20, 9241, 18482, 36964, 42689, 46205, 85378, 92410, 170756, 184820, 213445, 426890, 853780, 394489049, 788978098, 1577956196, 1972445245, 3944890490, 7889780980]

約数ペア:

[(1, 7889780980), (2, 3944890490), (4, 1972445245), (5, 1577956196), (10, 788978098), (20, 394489049), (9241, 853780), (18482, 426890), (36964, 213445), (42689, 184820), (46205, 170756), (85378, 92410)]