890803580

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{39451}}^1$

素因数の和:40589

約数の個数: 24

約数和(自身を含む): 1872391920

約数和(自身を除く): 981588340

約数列:

[1, 2, 4, 5, 10, 20, 1129, 2258, 4516, 5645, 11290, 22580, 39451, 78902, 157804, 197255, 394510, 789020, 44540179, 89080358, 178160716, 222700895, 445401790, 890803580]

約数ペア:

[(1, 890803580), (2, 445401790), (4, 222700895), (5, 178160716), (10, 89080358), (20, 44540179), (1129, 789020), (2258, 394510), (4516, 197255), (5645, 157804), (11290, 78902), (22580, 39451)]