82979120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2087}}^1$

素因数の和:2178

約数の個数: 80

約数和(自身を含む): 223699968

約数和(自身を除く): 140720848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2087, 2485, 2840, 3976, 4174, 4970, 5680, 7952, 8348, 9940, 10435, 14609, 16696, 19880, 20870, 29218, 33392, 39760, 41740, 58436, 73045, 83480, 116872, 146090, 148177, 166960, 233744, 292180, 296354, 584360, 592708, 740885, 1037239, 1168720, 1185416, 1481770, 2074478, 2370832, 2963540, 4148956, 5186195, 5927080, 8297912, 10372390, 11854160, 16595824, 20744780, 41489560, 82979120]

約数ペア:

[(1, 82979120), (2, 41489560), (4, 20744780), (5, 16595824), (7, 11854160), (8, 10372390), (10, 8297912), (14, 5927080), (16, 5186195), (20, 4148956), (28, 2963540), (35, 2370832), (40, 2074478), (56, 1481770), (70, 1185416), (71, 1168720), (80, 1037239), (112, 740885), (140, 592708), (142, 584360), (280, 296354), (284, 292180), (355, 233744), (497, 166960), (560, 148177), (568, 146090), (710, 116872), (994, 83480), (1136, 73045), (1420, 58436), (1988, 41740), (2087, 39760), (2485, 33392), (2840, 29218), (3976, 20870), (4174, 19880), (4970, 16696), (5680, 14609), (7952, 10435), (8348, 9940)]