1897025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{449}}^1$

素因数の和:485

約数の個数: 18

約数和(自身を含む): 2552850

約数和(自身を除く): 655825

約数列:

[1, 5, 13, 25, 65, 169, 325, 449, 845, 2245, 4225, 5837, 11225, 29185, 75881, 145925, 379405, 1897025]

約数ペア:

[(1, 1897025), (5, 379405), (13, 145925), (25, 75881), (65, 29185), (169, 11225), (325, 5837), (449, 4225), (845, 2245)]