20667060475

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{2289979}}^1$

素因数の和:2290027

約数の個数: 18

約数和(自身を含む): 27046953780

約数和(自身を除く): 6379893305

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 2289979, 11449895, 43509601, 57249475, 217548005, 826682419, 1087740025, 4133412095, 20667060475]

約数ペア:

[(1, 20667060475), (5, 4133412095), (19, 1087740025), (25, 826682419), (95, 217548005), (361, 57249475), (475, 43509601), (1805, 11449895), (9025, 2289979)]