66908080

素因数分解:

$2^4\times 5^1\times {\mathrm{836351}}^1$

素因数の和:836364

約数の個数: 20

約数和(自身を含む): 155561472

約数和(自身を除く): 88653392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 836351, 1672702, 3345404, 4181755, 6690808, 8363510, 13381616, 16727020, 33454040, 66908080]

約数ペア:

[(1, 66908080), (2, 33454040), (4, 16727020), (5, 13381616), (8, 8363510), (10, 6690808), (16, 4181755), (20, 3345404), (40, 1672702), (80, 836351)]