80665684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20599}}^1$

素因数の和:20703

約数の個数: 24

約数和(自身を含む): 155736000

約数和(自身を除く): 75070316

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 20599, 41198, 82396, 226589, 453178, 906356, 1833311, 3666622, 7333244, 20166421, 40332842, 80665684]

約数ペア:

[(1, 80665684), (2, 40332842), (4, 20166421), (11, 7333244), (22, 3666622), (44, 1833311), (89, 906356), (178, 453178), (356, 226589), (979, 82396), (1958, 41198), (3916, 20599)]