15907820

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1237}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 33485424

約数和(自身を除く): 17577604

約数列:

[1, 2, 4, 5, 10, 20, 643, 1237, 1286, 2474, 2572, 3215, 4948, 6185, 6430, 12370, 12860, 24740, 795391, 1590782, 3181564, 3976955, 7953910, 15907820]

約数ペア:

[(1, 15907820), (2, 7953910), (4, 3976955), (5, 3181564), (10, 1590782), (20, 795391), (643, 24740), (1237, 12860), (1286, 12370), (2474, 6430), (2572, 6185), (3215, 4948)]