2011870225

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{738301}}^1$

素因数の和:738420

約数の個数: 12

約数和(自身を含む): 2517609820

約数和(自身を除く): 505739595

約数列:

[1, 5, 25, 109, 545, 2725, 738301, 3691505, 18457525, 80474809, 402374045, 2011870225]

約数ペア:

[(1, 2011870225), (5, 402374045), (25, 80474809), (109, 18457525), (545, 3691505), (2725, 738301)]