19128520

素因数分解:

$2^3\times 5^1\times {\mathrm{478213}}^1$

素因数の和:478224

約数の個数: 16

約数和(自身を含む): 43039260

約数和(自身を除く): 23910740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 478213, 956426, 1912852, 2391065, 3825704, 4782130, 9564260, 19128520]

約数ペア:

[(1, 19128520), (2, 9564260), (4, 4782130), (5, 3825704), (8, 2391065), (10, 1912852), (20, 956426), (40, 478213)]