66505225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{7369}}^1$

素因数の和:7417

約数の個数: 18

約数和(自身を含む): 87047070

約数和(自身を除く): 20541845

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 7369, 9025, 36845, 140011, 184225, 700055, 2660209, 3500275, 13301045, 66505225]

約数ペア:

[(1, 66505225), (5, 13301045), (19, 3500275), (25, 2660209), (95, 700055), (361, 184225), (475, 140011), (1805, 36845), (7369, 9025)]