81390485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{587}}^1\times {\mathrm{2521}}^1$

素因数の和:3124

約数の個数: 16

約数和(自身を含む): 106771392

約数和(自身を除く): 25380907

約数列:

[1, 5, 11, 55, 587, 2521, 2935, 6457, 12605, 27731, 32285, 138655, 1479827, 7399135, 16278097, 81390485]

約数ペア:

[(1, 81390485), (5, 16278097), (11, 7399135), (55, 1479827), (587, 138655), (2521, 32285), (2935, 27731), (6457, 12605)]