1279200025

素因数分解:

$5^2\times {\mathrm{401}}^1\times {\mathrm{127601}}^1$

素因数の和:128012

約数の個数: 12

約数和(自身を含む): 1590176124

約数和(自身を除く): 310976099

約数列:

[1, 5, 25, 401, 2005, 10025, 127601, 638005, 3190025, 51168001, 255840005, 1279200025]

約数ペア:

[(1, 1279200025), (5, 255840005), (25, 51168001), (401, 3190025), (2005, 638005), (10025, 127601)]