31068980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{37889}}^1$

素因数の和:37939

約数の個数: 24

約数和(自身を含む): 66837960

約数和(自身を除く): 35768980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 37889, 75778, 151556, 189445, 378890, 757780, 1553449, 3106898, 6213796, 7767245, 15534490, 31068980]

約数ペア:

[(1, 31068980), (2, 15534490), (4, 7767245), (5, 6213796), (10, 3106898), (20, 1553449), (41, 757780), (82, 378890), (164, 189445), (205, 151556), (410, 75778), (820, 37889)]