67604225

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{16001}}^1$

素因数の和:16037

約数の個数: 18

約数和(自身を含む): 90779346

約数和(自身を除く): 23175121

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 16001, 80005, 208013, 400025, 1040065, 2704169, 5200325, 13520845, 67604225]

約数ペア:

[(1, 67604225), (5, 13520845), (13, 5200325), (25, 2704169), (65, 1040065), (169, 400025), (325, 208013), (845, 80005), (4225, 16001)]