18140245

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{827}}^1$

素因数の和:980

約数の個数: 16

約数和(自身を含む): 22534848

約数和(自身を除く): 4394603

約数列:

[1, 5, 41, 107, 205, 535, 827, 4135, 4387, 21935, 33907, 88489, 169535, 442445, 3628049, 18140245]

約数ペア:

[(1, 18140245), (5, 3628049), (41, 442445), (107, 169535), (205, 88489), (535, 33907), (827, 21935), (4135, 4387)]