158728040

素因数分解:

$2^3\times 5^1\times {\mathrm{3968201}}^1$

素因数の和:3968212

約数の個数: 16

約数和(自身を含む): 357138180

約数和(自身を除く): 198410140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3968201, 7936402, 15872804, 19841005, 31745608, 39682010, 79364020, 158728040]

約数ペア:

[(1, 158728040), (2, 79364020), (4, 39682010), (5, 31745608), (8, 19841005), (10, 15872804), (20, 7936402), (40, 3968201)]