318588080

素因数分解:

$2^4\times 5^1\times {\mathrm{3982351}}^1$

素因数の和:3982364

約数の個数: 20

約数和(自身を含む): 740717472

約数和(自身を除く): 422129392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3982351, 7964702, 15929404, 19911755, 31858808, 39823510, 63717616, 79647020, 159294040, 318588080]

約数ペア:

[(1, 318588080), (2, 159294040), (4, 79647020), (5, 63717616), (8, 39823510), (10, 31858808), (16, 19911755), (20, 15929404), (40, 7964702), (80, 3982351)]