84268820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97987}}^1$

素因数の和:98039

約数の個数: 24

約数和(自身を含む): 181081824

約数和(自身を除く): 96813004

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 97987, 195974, 391948, 489935, 979870, 1959740, 4213441, 8426882, 16853764, 21067205, 42134410, 84268820]

約数ペア:

[(1, 84268820), (2, 42134410), (4, 21067205), (5, 16853764), (10, 8426882), (20, 4213441), (43, 1959740), (86, 979870), (172, 489935), (215, 391948), (430, 195974), (860, 97987)]