20187080

素因数分解:

$2^3\times 5^1\times {\mathrm{504677}}^1$

素因数の和:504688

約数の個数: 16

約数和(自身を含む): 45421020

約数和(自身を除く): 25233940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504677, 1009354, 2018708, 2523385, 4037416, 5046770, 10093540, 20187080]

約数ペア:

[(1, 20187080), (2, 10093540), (4, 5046770), (5, 4037416), (8, 2523385), (10, 2018708), (20, 1009354), (40, 504677)]