805820

素因数分解:

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

素因数の和:989

約数の個数: 24

約数和(自身を含む): 1733424

約数和(自身を除く): 927604

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 937, 1874, 3748, 4685, 9370, 18740, 40291, 80582, 161164, 201455, 402910, 805820]

約数ペア:

[(1, 805820), (2, 402910), (4, 201455), (5, 161164), (10, 80582), (20, 40291), (43, 18740), (86, 9370), (172, 4685), (215, 3748), (430, 1874), (860, 937)]