55556680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81701}}^1$

素因数の和:81729

約数の個数: 32

約数和(自身を含む): 132357240

約数和(自身を除く): 76800560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 81701, 163402, 326804, 408505, 653608, 817010, 1388917, 1634020, 2777834, 3268040, 5555668, 6944585, 11111336, 13889170, 27778340, 55556680]

約数ペア:

[(1, 55556680), (2, 27778340), (4, 13889170), (5, 11111336), (8, 6944585), (10, 5555668), (17, 3268040), (20, 2777834), (34, 1634020), (40, 1388917), (68, 817010), (85, 653608), (136, 408505), (170, 326804), (340, 163402), (680, 81701)]