77440025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{18329}}^1$

素因数の和:18365

約数の個数: 18

約数和(自身を含む): 103986090

約数和(自身を除く): 26546065

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 18329, 91645, 238277, 458225, 1191385, 3097601, 5956925, 15488005, 77440025]

約数ペア:

[(1, 77440025), (5, 15488005), (13, 5956925), (25, 3097601), (65, 1191385), (169, 458225), (325, 238277), (845, 91645), (4225, 18329)]