19985510

素因数分解:

$2^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{2851}}^1$

素因数の和:3559

約数の個数: 16

約数和(自身を含む): 36037872

約数和(自身を除く): 16052362

約数列:

[1, 2, 5, 10, 701, 1402, 2851, 3505, 5702, 7010, 14255, 28510, 1998551, 3997102, 9992755, 19985510]

約数ペア:

[(1, 19985510), (2, 9992755), (5, 3997102), (10, 1998551), (701, 28510), (1402, 14255), (2851, 7010), (3505, 5702)]