20338895

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 25027392

約数和(自身を除く): 4688497

約数列:

[1, 5, 73, 103, 365, 515, 541, 2705, 7519, 37595, 39493, 55723, 197465, 278615, 4067779, 20338895]

約数ペア:

[(1, 20338895), (5, 4067779), (73, 278615), (103, 197465), (365, 55723), (515, 39493), (541, 37595), (2705, 7519)]