9780118985

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3070681}}^1$

素因数の和:3070713

約数の個数: 24

約数和(自身を含む): 14702425416

約数和(自身を除く): 4922306431

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 3070681, 15353405, 21494767, 39918853, 107473835, 150463369, 199594265, 279431971, 752316845, 1397159855, 1956023797, 9780118985]

約数ペア:

[(1, 9780118985), (5, 1956023797), (7, 1397159855), (13, 752316845), (35, 279431971), (49, 199594265), (65, 150463369), (91, 107473835), (245, 39918853), (455, 21494767), (637, 15353405), (3185, 3070681)]