20385500

素因数分解:

$2^2\times 5^3\times {\mathrm{40771}}^1$

素因数の和:40790

約数の個数: 24

約数和(自身を含む): 44523024

約数和(自身を除く): 24137524

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 40771, 81542, 163084, 203855, 407710, 815420, 1019275, 2038550, 4077100, 5096375, 10192750, 20385500]

約数ペア:

[(1, 20385500), (2, 10192750), (4, 5096375), (5, 4077100), (10, 2038550), (20, 1019275), (25, 815420), (50, 407710), (100, 203855), (125, 163084), (250, 81542), (500, 40771)]