521104702975

素因数分解:

$5^2\times {\mathrm{401}}^1\times {\mathrm{51980519}}^1$

素因数の和:51980930

約数の個数: 12

約数和(自身を含む): 647781240240

約数和(自身を除く): 126676537265

約数列:

[1, 5, 25, 401, 2005, 10025, 51980519, 259902595, 1299512975, 20844188119, 104220940595, 521104702975]

約数ペア:

[(1, 521104702975), (5, 104220940595), (25, 20844188119), (401, 1299512975), (2005, 259902595), (10025, 51980519)]