82628225

素因数分解:

$5^2\times {\mathrm{409}}^1\times {\mathrm{8081}}^1$

素因数の和:8500

約数の個数: 12

約数和(自身を含む): 102722220

約数和(自身を除く): 20093995

約数列:

[1, 5, 25, 409, 2045, 8081, 10225, 40405, 202025, 3305129, 16525645, 82628225]

約数ペア:

[(1, 82628225), (5, 16525645), (25, 3305129), (409, 202025), (2045, 40405), (8081, 10225)]