399012910

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{4663}}^1$

素因数の和:4912

約数の個数: 32

約数和(自身を含む): 738777600

約数和(自身を除く): 339764690

約数列:

[1, 2, 5, 10, 43, 86, 199, 215, 398, 430, 995, 1990, 4663, 8557, 9326, 17114, 23315, 42785, 46630, 85570, 200509, 401018, 927937, 1002545, 1855874, 2005090, 4639685, 9279370, 39901291, 79802582, 199506455, 399012910]

約数ペア:

[(1, 399012910), (2, 199506455), (5, 79802582), (10, 39901291), (43, 9279370), (86, 4639685), (199, 2005090), (215, 1855874), (398, 1002545), (430, 927937), (995, 401018), (1990, 200509), (4663, 85570), (8557, 46630), (9326, 42785), (17114, 23315)]