164820025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{212671}}^1$

素因数の和:212712

約数の個数: 12

約数和(自身を含む): 210970624

約数和(自身を除く): 46150599

約数列:

[1, 5, 25, 31, 155, 775, 212671, 1063355, 5316775, 6592801, 32964005, 164820025]

約数ペア:

[(1, 164820025), (5, 32964005), (25, 6592801), (31, 5316775), (155, 1063355), (775, 212671)]