20586905

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 4693735

約数列:

[1, 5, 83, 113, 415, 439, 565, 2195, 9379, 36437, 46895, 49607, 182185, 248035, 4117381, 20586905]

約数ペア:

[(1, 20586905), (5, 4117381), (83, 248035), (113, 182185), (415, 49607), (439, 46895), (565, 36437), (2195, 9379)]