12206980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4391}}^1$

素因数の和:4539

約数の個数: 24

約数和(自身を含む): 25824960

約数和(自身を除く): 13617980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4391, 8782, 17564, 21955, 43910, 87820, 610349, 1220698, 2441396, 3051745, 6103490, 12206980]

約数ペア:

[(1, 12206980), (2, 6103490), (4, 3051745), (5, 2441396), (10, 1220698), (20, 610349), (139, 87820), (278, 43910), (556, 21955), (695, 17564), (1390, 8782), (2780, 4391)]