20004037220

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2037071}}^1$

素因数の和:2037571

約数の個数: 24

約数和(自身を含む): 42094055808

約数和(自身を除く): 22090018588

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 2037071, 4074142, 8148284, 10185355, 20370710, 40741420, 1000201861, 2000403722, 4000807444, 5001009305, 10002018610, 20004037220]

約数ペア:

[(1, 20004037220), (2, 10002018610), (4, 5001009305), (5, 4000807444), (10, 2000403722), (20, 1000201861), (491, 40741420), (982, 20370710), (1964, 10185355), (2455, 8148284), (4910, 4074142), (9820, 2037071)]