1720201240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1000117}}^1$

素因数の和:1000171

約数の個数: 32

約数和(自身を含む): 3960467280

約数和(自身を除く): 2240266040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1000117, 2000234, 4000468, 5000585, 8000936, 10001170, 20002340, 40004680, 43005031, 86010062, 172020124, 215025155, 344040248, 430050310, 860100620, 1720201240]

約数ペア:

[(1, 1720201240), (2, 860100620), (4, 430050310), (5, 344040248), (8, 215025155), (10, 172020124), (20, 86010062), (40, 43005031), (43, 40004680), (86, 20002340), (172, 10001170), (215, 8000936), (344, 5000585), (430, 4000468), (860, 2000234), (1720, 1000117)]