81228740

素因数分解:

$2^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{6691}}^1$

素因数の和:7307

約数の個数: 24

約数和(自身を含む): 170886912

約数和(自身を除く): 89658172

約数列:

[1, 2, 4, 5, 10, 20, 607, 1214, 2428, 3035, 6070, 6691, 12140, 13382, 26764, 33455, 66910, 133820, 4061437, 8122874, 16245748, 20307185, 40614370, 81228740]

約数ペア:

[(1, 81228740), (2, 40614370), (4, 20307185), (5, 16245748), (10, 8122874), (20, 4061437), (607, 133820), (1214, 66910), (2428, 33455), (3035, 26764), (6070, 13382), (6691, 12140)]