408522020

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{32371}}^1$

素因数の和:33011

約数の個数: 24

約数和(自身を含む): 859282368

約数和(自身を除く): 450760348

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 12620, 32371, 64742, 129484, 161855, 323710, 647420, 20426101, 40852202, 81704404, 102130505, 204261010, 408522020]

約数ペア:

[(1, 408522020), (2, 204261010), (4, 102130505), (5, 81704404), (10, 40852202), (20, 20426101), (631, 647420), (1262, 323710), (2524, 161855), (3155, 129484), (6310, 64742), (12620, 32371)]