20870375

素因数分解:

$5^3\times {\mathrm{103}}^1\times {\mathrm{1621}}^1$

素因数の和:1739

約数の個数: 16

約数和(自身を含む): 26315328

約数和(自身を除く): 5444953

約数列:

[1, 5, 25, 103, 125, 515, 1621, 2575, 8105, 12875, 40525, 166963, 202625, 834815, 4174075, 20870375]

約数ペア:

[(1, 20870375), (5, 4174075), (25, 834815), (103, 202625), (125, 166963), (515, 40525), (1621, 12875), (2575, 8105)]