20442280

素因数分解:

$2^3\times 5^1\times {\mathrm{511057}}^1$

素因数の和:511068

約数の個数: 16

約数和(自身を含む): 45995220

約数和(自身を除く): 25552940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511057, 1022114, 2044228, 2555285, 4088456, 5110570, 10221140, 20442280]

約数ペア:

[(1, 20442280), (2, 10221140), (4, 5110570), (5, 4088456), (8, 2555285), (10, 2044228), (20, 1022114), (40, 511057)]