639273025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{623681}}^1$

素因数の和:623732

約数の個数: 12

約数和(自身を含む): 812033964

約数和(自身を除く): 172760939

約数列:

[1, 5, 25, 41, 205, 1025, 623681, 3118405, 15592025, 25570921, 127854605, 639273025]

約数ペア:

[(1, 639273025), (5, 127854605), (25, 25570921), (41, 15592025), (205, 3118405), (1025, 623681)]