16686980

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3491}}^1$

素因数の和:3739

約数の個数: 24

約数和(自身を含む): 35199360

約数和(自身を除く): 18512380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 3491, 4780, 6982, 13964, 17455, 34910, 69820, 834349, 1668698, 3337396, 4171745, 8343490, 16686980]

約数ペア:

[(1, 16686980), (2, 8343490), (4, 4171745), (5, 3337396), (10, 1668698), (20, 834349), (239, 69820), (478, 34910), (956, 17455), (1195, 13964), (2390, 6982), (3491, 4780)]