66793025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{15809}}^1$

素因数の和:15845

約数の個数: 18

約数和(自身を含む): 89690130

約数和(自身を除く): 22897105

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 15809, 79045, 205517, 395225, 1027585, 2671721, 5137925, 13358605, 66793025]

約数ペア:

[(1, 66793025), (5, 13358605), (13, 5137925), (25, 2671721), (65, 1027585), (169, 395225), (325, 205517), (845, 79045), (4225, 15809)]