20107960

素因数分解:

$2^3\times 5^1\times {\mathrm{502699}}^1$

素因数の和:502710

約数の個数: 16

約数和(自身を含む): 45243000

約数和(自身を除く): 25135040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502699, 1005398, 2010796, 2513495, 4021592, 5026990, 10053980, 20107960]

約数ペア:

[(1, 20107960), (2, 10053980), (4, 5026990), (5, 4021592), (8, 2513495), (10, 2010796), (20, 1005398), (40, 502699)]