20159204510

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1997939}}^1$

素因数の和:1998955

約数の個数: 16

約数和(自身を含む): 36322549200

約数和(自身を除く): 16163344690

約数列:

[1, 2, 5, 10, 1009, 2018, 5045, 10090, 1997939, 3995878, 9989695, 19979390, 2015920451, 4031840902, 10079602255, 20159204510]

約数ペア:

[(1, 20159204510), (2, 10079602255), (5, 4031840902), (10, 2015920451), (1009, 19979390), (2018, 9989695), (5045, 3995878), (10090, 1997939)]