81598025

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{3881}}^1$

素因数の和:3949

約数の個数: 18

約数和(自身を含む): 104817882

約数和(自身を除く): 23219857

約数列:

[1, 5, 25, 29, 145, 725, 841, 3881, 4205, 19405, 21025, 97025, 112549, 562745, 2813725, 3263921, 16319605, 81598025]

約数ペア:

[(1, 81598025), (5, 16319605), (25, 3263921), (29, 2813725), (145, 562745), (725, 112549), (841, 97025), (3881, 21025), (4205, 19405)]