12750040

素因数分解:

$2^3\times 5^1\times {\mathrm{318751}}^1$

素因数の和:318762

約数の個数: 16

約数和(自身を含む): 28687680

約数和(自身を除く): 15937640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 318751, 637502, 1275004, 1593755, 2550008, 3187510, 6375020, 12750040]

約数ペア:

[(1, 12750040), (2, 6375020), (4, 3187510), (5, 2550008), (8, 1593755), (10, 1275004), (20, 637502), (40, 318751)]