20790071618

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{640049}}^1$

素因数の和:640309

約数の個数: 16

約数和(自身を含む): 31682475000

約数和(自身を除く): 10892403382

約数列:

[1, 2, 109, 149, 218, 298, 16241, 32482, 640049, 1280098, 69765341, 95367301, 139530682, 190734602, 10395035809, 20790071618]

約数ペア:

[(1, 20790071618), (2, 10395035809), (109, 190734602), (149, 139530682), (218, 95367301), (298, 69765341), (16241, 1280098), (32482, 640049)]