20855080

素因数分解:

$2^3\times 5^1\times {\mathrm{521377}}^1$

素因数の和:521388

約数の個数: 16

約数和(自身を含む): 46924020

約数和(自身を除く): 26068940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521377, 1042754, 2085508, 2606885, 4171016, 5213770, 10427540, 20855080]

約数ペア:

[(1, 20855080), (2, 10427540), (4, 5213770), (5, 4171016), (8, 2606885), (10, 2085508), (20, 1042754), (40, 521377)]