213400225

素因数分解:

$5^2\times {\mathrm{881}}^1\times {\mathrm{9689}}^1$

素因数の和:10580

約数の個数: 12

約数和(自身を含む): 264943980

約数和(自身を除く): 51543755

約数列:

[1, 5, 25, 881, 4405, 9689, 22025, 48445, 242225, 8536009, 42680045, 213400225]

約数ペア:

[(1, 213400225), (5, 42680045), (25, 8536009), (881, 242225), (4405, 48445), (9689, 22025)]