209956825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{5717}}^1$

素因数の和:5853

約数の個数: 24

約数和(自身を含む): 282903768

約数和(自身を除く): 72946943

約数列:

[1, 5, 13, 25, 65, 113, 325, 565, 1469, 2825, 5717, 7345, 28585, 36725, 74321, 142925, 371605, 646021, 1858025, 3230105, 8398273, 16150525, 41991365, 209956825]

約数ペア:

[(1, 209956825), (5, 41991365), (13, 16150525), (25, 8398273), (65, 3230105), (113, 1858025), (325, 646021), (565, 371605), (1469, 142925), (2825, 74321), (5717, 36725), (7345, 28585)]