28120615

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{701}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 34572096

約数和(自身を除く): 6451481

約数列:

[1, 5, 71, 113, 355, 565, 701, 3505, 8023, 40115, 49771, 79213, 248855, 396065, 5624123, 28120615]

約数ペア:

[(1, 28120615), (5, 5624123), (71, 396065), (113, 248855), (355, 79213), (565, 49771), (701, 40115), (3505, 8023)]