20172065

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{467}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 24867648

約数和(自身を除く): 4695583

約数列:

[1, 5, 53, 163, 265, 467, 815, 2335, 8639, 24751, 43195, 76121, 123755, 380605, 4034413, 20172065]

約数ペア:

[(1, 20172065), (5, 4034413), (53, 380605), (163, 123755), (265, 76121), (467, 43195), (815, 24751), (2335, 8639)]