80842660

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{21163}}^1$

素因数の和:21363

約数の個数: 24

約数和(自身を含む): 170666496

約数和(自身を除く): 89823836

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 21163, 42326, 84652, 105815, 211630, 423260, 4042133, 8084266, 16168532, 20210665, 40421330, 80842660]

約数ペア:

[(1, 80842660), (2, 40421330), (4, 20210665), (5, 16168532), (10, 8084266), (20, 4042133), (191, 423260), (382, 211630), (764, 105815), (955, 84652), (1910, 42326), (3820, 21163)]