204057920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 112

約数和(自身を含む): 548640000

約数和(自身を除く): 344582080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 145, 160, 176, 220, 232, 290, 319, 320, 352, 440, 464, 580, 638, 704, 880, 928, 1160, 1276, 1595, 1760, 1856, 1999, 2320, 2552, 3190, 3520, 3998, 4640, 5104, 6380, 7996, 9280, 9995, 10208, 12760, 15992, 19990, 20416, 21989, 25520, 31984, 39980, 43978, 51040, 57971, 63968, 79960, 87956, 102080, 109945, 115942, 127936, 159920, 175912, 219890, 231884, 289855, 319840, 351824, 439780, 463768, 579710, 637681, 639680, 703648, 879560, 927536, 1159420, 1275362, 1407296, 1759120, 1855072, 2318840, 2550724, 3188405, 3518240, 3710144, 4637680, 5101448, 6376810, 7036480, 9275360, 10202896, 12753620, 18550720, 20405792, 25507240, 40811584, 51014480, 102028960, 204057920]

約数ペア:

[(1, 204057920), (2, 102028960), (4, 51014480), (5, 40811584), (8, 25507240), (10, 20405792), (11, 18550720), (16, 12753620), (20, 10202896), (22, 9275360), (29, 7036480), (32, 6376810), (40, 5101448), (44, 4637680), (55, 3710144), (58, 3518240), (64, 3188405), (80, 2550724), (88, 2318840), (110, 1855072), (116, 1759120), (145, 1407296), (160, 1275362), (176, 1159420), (220, 927536), (232, 879560), (290, 703648), (319, 639680), (320, 637681), (352, 579710), (440, 463768), (464, 439780), (580, 351824), (638, 319840), (704, 289855), (880, 231884), (928, 219890), (1160, 175912), (1276, 159920), (1595, 127936), (1760, 115942), (1856, 109945), (1999, 102080), (2320, 87956), (2552, 79960), (3190, 63968), (3520, 57971), (3998, 51040), (4640, 43978), (5104, 39980), (6380, 31984), (7996, 25520), (9280, 21989), (9995, 20416), (10208, 19990), (12760, 15992)]