20305520

素因数分解:

$2^4\times 5^1\times {\mathrm{253819}}^1$

素因数の和:253832

約数の個数: 20

約数和(自身を含む): 47210520

約数和(自身を除く): 26905000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253819, 507638, 1015276, 1269095, 2030552, 2538190, 4061104, 5076380, 10152760, 20305520]

約数ペア:

[(1, 20305520), (2, 10152760), (4, 5076380), (5, 4061104), (8, 2538190), (10, 2030552), (16, 1269095), (20, 1015276), (40, 507638), (80, 253819)]