20162509520

素因数分解:

$2^4\times 5^1\times {\mathrm{2137}}^1\times {\mathrm{117937}}^1$

素因数の和:120087

約数の個数: 40

約数和(自身を含む): 46900168584

約数和(自身を除く): 26737659064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2137, 4274, 8548, 10685, 17096, 21370, 34192, 42740, 85480, 117937, 170960, 235874, 471748, 589685, 943496, 1179370, 1886992, 2358740, 4717480, 9434960, 252031369, 504062738, 1008125476, 1260156845, 2016250952, 2520313690, 4032501904, 5040627380, 10081254760, 20162509520]

約数ペア:

[(1, 20162509520), (2, 10081254760), (4, 5040627380), (5, 4032501904), (8, 2520313690), (10, 2016250952), (16, 1260156845), (20, 1008125476), (40, 504062738), (80, 252031369), (2137, 9434960), (4274, 4717480), (8548, 2358740), (10685, 1886992), (17096, 1179370), (21370, 943496), (34192, 589685), (42740, 471748), (85480, 235874), (117937, 170960)]