40080025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{4441}}^1$

素因数の和:4489

約数の個数: 18

約数和(自身を含む): 52464462

約数和(自身を除く): 12384437

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 4441, 9025, 22205, 84379, 111025, 421895, 1603201, 2109475, 8016005, 40080025]

約数ペア:

[(1, 40080025), (5, 8016005), (19, 2109475), (25, 1603201), (95, 421895), (361, 111025), (475, 84379), (1805, 22205), (4441, 9025)]