8866640

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{809}}^1$

素因数の和:959

約数の個数: 40

約数和(自身を含む): 20791080

約数和(自身を除く): 11924440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 809, 1096, 1370, 1618, 2192, 2740, 3236, 4045, 5480, 6472, 8090, 10960, 12944, 16180, 32360, 64720, 110833, 221666, 443332, 554165, 886664, 1108330, 1773328, 2216660, 4433320, 8866640]

約数ペア:

[(1, 8866640), (2, 4433320), (4, 2216660), (5, 1773328), (8, 1108330), (10, 886664), (16, 554165), (20, 443332), (40, 221666), (80, 110833), (137, 64720), (274, 32360), (548, 16180), (685, 12944), (809, 10960), (1096, 8090), (1370, 6472), (1618, 5480), (2192, 4045), (2740, 3236)]