22225225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{80819}}^1$

素因数の和:80840

約数の個数: 12

約数和(自身を含む): 30065040

約数和(自身を除く): 7839815

約数列:

[1, 5, 11, 25, 55, 275, 80819, 404095, 889009, 2020475, 4445045, 22225225]

約数ペア:

[(1, 22225225), (5, 4445045), (11, 2020475), (25, 889009), (55, 404095), (275, 80819)]