20078876180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{666187}}^1$

素因数の和:666344

約数の個数: 48

約数和(自身を含む): 46334707776

約数和(自身を除く): 26255831596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2740, 3014, 6028, 7535, 15070, 30140, 666187, 1332374, 2664748, 3330935, 6661870, 7328057, 13323740, 14656114, 29312228, 36640285, 73280570, 91267619, 146561140, 182535238, 365070476, 456338095, 912676190, 1003943809, 1825352380, 2007887618, 4015775236, 5019719045, 10039438090, 20078876180]

約数ペア:

[(1, 20078876180), (2, 10039438090), (4, 5019719045), (5, 4015775236), (10, 2007887618), (11, 1825352380), (20, 1003943809), (22, 912676190), (44, 456338095), (55, 365070476), (110, 182535238), (137, 146561140), (220, 91267619), (274, 73280570), (548, 36640285), (685, 29312228), (1370, 14656114), (1507, 13323740), (2740, 7328057), (3014, 6661870), (6028, 3330935), (7535, 2664748), (15070, 1332374), (30140, 666187)]