164406080

素因数分解:

$2^6\times 5^1\times {\mathrm{513769}}^1$

素因数の和:513786

約数の個数: 28

約数和(自身を含む): 391492740

約数和(自身を除く): 227086660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 513769, 1027538, 2055076, 2568845, 4110152, 5137690, 8220304, 10275380, 16440608, 20550760, 32881216, 41101520, 82203040, 164406080]

約数ペア:

[(1, 164406080), (2, 82203040), (4, 41101520), (5, 32881216), (8, 20550760), (10, 16440608), (16, 10275380), (20, 8220304), (32, 5137690), (40, 4110152), (64, 2568845), (80, 2055076), (160, 1027538), (320, 513769)]