198846680

素因数分解:

$2^3\times 5^1\times {\mathrm{4971167}}^1$

素因数の和:4971178

約数の個数: 16

約数和(自身を含む): 447405120

約数和(自身を除く): 248558440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4971167, 9942334, 19884668, 24855835, 39769336, 49711670, 99423340, 198846680]

約数ペア:

[(1, 198846680), (2, 99423340), (4, 49711670), (5, 39769336), (8, 24855835), (10, 19884668), (20, 9942334), (40, 4971167)]