19888580

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{3137}}^1$

素因数の和:3463

約数の個数: 24

約数和(自身を含む): 41911128

約数和(自身を除く): 22022548

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3137, 3170, 6274, 6340, 12548, 15685, 31370, 62740, 994429, 1988858, 3977716, 4972145, 9944290, 19888580]

約数ペア:

[(1, 19888580), (2, 9944290), (4, 4972145), (5, 3977716), (10, 1988858), (20, 994429), (317, 62740), (634, 31370), (1268, 15685), (1585, 12548), (3137, 6340), (3170, 6274)]