81518140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{370537}}^1$

素因数の和:370557

約数の個数: 24

約数和(自身を含む): 186751152

約数和(自身を除く): 105233012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 370537, 741074, 1482148, 1852685, 3705370, 4075907, 7410740, 8151814, 16303628, 20379535, 40759070, 81518140]

約数ペア:

[(1, 81518140), (2, 40759070), (4, 20379535), (5, 16303628), (10, 8151814), (11, 7410740), (20, 4075907), (22, 3705370), (44, 1852685), (55, 1482148), (110, 741074), (220, 370537)]