389733980

素因数分解:

$2^2\times 5^1\times {\mathrm{2797}}^1\times {\mathrm{6967}}^1$

素因数の和:9773

約数の個数: 24

約数和(自身を含む): 818851488

約数和(自身を除く): 429117508

約数列:

[1, 2, 4, 5, 10, 20, 2797, 5594, 6967, 11188, 13934, 13985, 27868, 27970, 34835, 55940, 69670, 139340, 19486699, 38973398, 77946796, 97433495, 194866990, 389733980]

約数ペア:

[(1, 389733980), (2, 194866990), (4, 97433495), (5, 77946796), (10, 38973398), (20, 19486699), (2797, 139340), (5594, 69670), (6967, 55940), (11188, 34835), (13934, 27970), (13985, 27868)]