18690025

素因数分解:

$5^2\times {\mathrm{151}}^1\times {\mathrm{4951}}^1$

素因数の和:5112

約数の個数: 12

約数和(自身を含む): 23333824

約数和(自身を除く): 4643799

約数列:

[1, 5, 25, 151, 755, 3775, 4951, 24755, 123775, 747601, 3738005, 18690025]

約数ペア:

[(1, 18690025), (5, 3738005), (25, 747601), (151, 123775), (755, 24755), (3775, 4951)]