2018678680

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{110431}}^1$

素因数の和:110899

約数の個数: 32

約数和(自身を含む): 4552007040

約数和(自身を除く): 2533328360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4570, 9140, 18280, 110431, 220862, 441724, 552155, 883448, 1104310, 2208620, 4417240, 50466967, 100933934, 201867868, 252334835, 403735736, 504669670, 1009339340, 2018678680]

約数ペア:

[(1, 2018678680), (2, 1009339340), (4, 504669670), (5, 403735736), (8, 252334835), (10, 201867868), (20, 100933934), (40, 50466967), (457, 4417240), (914, 2208620), (1828, 1104310), (2285, 883448), (3656, 552155), (4570, 441724), (9140, 220862), (18280, 110431)]