20955080

素因数分解:

$2^3\times 5^1\times {\mathrm{523877}}^1$

素因数の和:523888

約数の個数: 16

約数和(自身を含む): 47149020

約数和(自身を除く): 26193940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523877, 1047754, 2095508, 2619385, 4191016, 5238770, 10477540, 20955080]

約数ペア:

[(1, 20955080), (2, 10477540), (4, 5238770), (5, 4191016), (8, 2619385), (10, 2095508), (20, 1047754), (40, 523877)]