1611640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 3714480

約数和(自身を除く): 2102840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 937, 1720, 1874, 3748, 4685, 7496, 9370, 18740, 37480, 40291, 80582, 161164, 201455, 322328, 402910, 805820, 1611640]

約数ペア:

[(1, 1611640), (2, 805820), (4, 402910), (5, 322328), (8, 201455), (10, 161164), (20, 80582), (40, 40291), (43, 37480), (86, 18740), (172, 9370), (215, 7496), (344, 4685), (430, 3748), (860, 1874), (937, 1720)]