19045820

素因数分解:

$2^2\times 5^1\times {\mathrm{952291}}^1$

素因数の和:952300

約数の個数: 12

約数和(自身を含む): 39996264

約数和(自身を除く): 20950444

約数列:

[1, 2, 4, 5, 10, 20, 952291, 1904582, 3809164, 4761455, 9522910, 19045820]

約数ペア:

[(1, 19045820), (2, 9522910), (4, 4761455), (5, 3809164), (10, 1904582), (20, 952291)]