20550160

素因数分解:

$2^4\times 5^1\times {\mathrm{256877}}^1$

素因数の和:256890

約数の個数: 20

約数和(自身を含む): 47779308

約数和(自身を除く): 27229148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256877, 513754, 1027508, 1284385, 2055016, 2568770, 4110032, 5137540, 10275080, 20550160]

約数ペア:

[(1, 20550160), (2, 10275080), (4, 5137540), (5, 4110032), (8, 2568770), (10, 2055016), (16, 1284385), (20, 1027508), (40, 513754), (80, 256877)]