9888280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5749}}^1$

素因数の和:5803

約数の個数: 32

約数和(自身を含む): 22770000

約数和(自身を除く): 12881720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5749, 11498, 22996, 28745, 45992, 57490, 114980, 229960, 247207, 494414, 988828, 1236035, 1977656, 2472070, 4944140, 9888280]

約数ペア:

[(1, 9888280), (2, 4944140), (4, 2472070), (5, 1977656), (8, 1236035), (10, 988828), (20, 494414), (40, 247207), (43, 229960), (86, 114980), (172, 57490), (215, 45992), (344, 28745), (430, 22996), (860, 11498), (1720, 5749)]