19119080

素因数分解:

$2^3\times 5^1\times {\mathrm{477977}}^1$

素因数の和:477988

約数の個数: 16

約数和(自身を含む): 43018020

約数和(自身を除く): 23898940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 477977, 955954, 1911908, 2389885, 3823816, 4779770, 9559540, 19119080]

約数ペア:

[(1, 19119080), (2, 9559540), (4, 4779770), (5, 3823816), (8, 2389885), (10, 1911908), (20, 955954), (40, 477977)]