81351610

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{32411}}^1$

素因数の和:32669

約数の個数: 16

約数和(自身を含む): 147020832

約数和(自身を除く): 65669222

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 32411, 64822, 162055, 324110, 8135161, 16270322, 40675805, 81351610]

約数ペア:

[(1, 81351610), (2, 40675805), (5, 16270322), (10, 8135161), (251, 324110), (502, 162055), (1255, 64822), (2510, 32411)]