19665080

素因数分解:

$2^3\times 5^1\times {\mathrm{491627}}^1$

素因数の和:491638

約数の個数: 16

約数和(自身を含む): 44246520

約数和(自身を除く): 24581440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491627, 983254, 1966508, 2458135, 3933016, 4916270, 9832540, 19665080]

約数ペア:

[(1, 19665080), (2, 9832540), (4, 4916270), (5, 3933016), (8, 2458135), (10, 1966508), (20, 983254), (40, 491627)]