205131080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{66601}}^1$

素因数の和:66630

約数の個数: 64

約数和(自身を含む): 575441280

約数和(自身を除く): 370310200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 66601, 133202, 266404, 333005, 466207, 532808, 666010, 732611, 932414, 1332020, 1465222, 1864828, 2331035, 2664040, 2930444, 3663055, 3729656, 4662070, 5128277, 5860888, 7326110, 9324140, 10256554, 14652220, 18648280, 20513108, 25641385, 29304440, 41026216, 51282770, 102565540, 205131080]

約数ペア:

[(1, 205131080), (2, 102565540), (4, 51282770), (5, 41026216), (7, 29304440), (8, 25641385), (10, 20513108), (11, 18648280), (14, 14652220), (20, 10256554), (22, 9324140), (28, 7326110), (35, 5860888), (40, 5128277), (44, 4662070), (55, 3729656), (56, 3663055), (70, 2930444), (77, 2664040), (88, 2331035), (110, 1864828), (140, 1465222), (154, 1332020), (220, 932414), (280, 732611), (308, 666010), (385, 532808), (440, 466207), (616, 333005), (770, 266404), (1540, 133202), (3080, 66601)]