19655080

素因数分解:

$2^3\times 5^1\times {\mathrm{491377}}^1$

素因数の和:491388

約数の個数: 16

約数和(自身を含む): 44224020

約数和(自身を除く): 24568940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491377, 982754, 1965508, 2456885, 3931016, 4913770, 9827540, 19655080]

約数ペア:

[(1, 19655080), (2, 9827540), (4, 4913770), (5, 3931016), (8, 2456885), (10, 1965508), (20, 982754), (40, 491377)]