20495180

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2903}}^1$

素因数の和:3265

約数の個数: 24

約数和(自身を含む): 43176672

約数和(自身を除く): 22681492

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2903, 3530, 5806, 7060, 11612, 14515, 29030, 58060, 1024759, 2049518, 4099036, 5123795, 10247590, 20495180]

約数ペア:

[(1, 20495180), (2, 10247590), (4, 5123795), (5, 4099036), (10, 2049518), (20, 1024759), (353, 58060), (706, 29030), (1412, 14515), (1765, 11612), (2903, 7060), (3530, 5806)]