388525520

素因数分解:

$2^4\times 5^1\times {\mathrm{4856569}}^1$

素因数の和:4856582

約数の個数: 20

約数和(自身を含む): 903322020

約数和(自身を除く): 514796500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4856569, 9713138, 19426276, 24282845, 38852552, 48565690, 77705104, 97131380, 194262760, 388525520]

約数ペア:

[(1, 388525520), (2, 194262760), (4, 97131380), (5, 77705104), (8, 48565690), (10, 38852552), (16, 24282845), (20, 19426276), (40, 9713138), (80, 4856569)]