40910225

素因数分解:

$5^2\times {\mathrm{409}}^1\times {\mathrm{4001}}^1$

素因数の和:4420

約数の個数: 12

約数和(自身を含む): 50865420

約数和(自身を除く): 9955195

約数列:

[1, 5, 25, 409, 2045, 4001, 10225, 20005, 100025, 1636409, 8182045, 40910225]

約数ペア:

[(1, 40910225), (5, 8182045), (25, 1636409), (409, 100025), (2045, 20005), (4001, 10225)]