20448040

素因数分解:

$2^3\times 5^1\times {\mathrm{511201}}^1$

素因数の和:511212

約数の個数: 16

約数和(自身を含む): 46008180

約数和(自身を除く): 25560140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511201, 1022402, 2044804, 2556005, 4089608, 5112010, 10224020, 20448040]

約数ペア:

[(1, 20448040), (2, 10224020), (4, 5112010), (5, 4089608), (8, 2556005), (10, 2044804), (20, 1022402), (40, 511201)]