247749920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 144

約数和(自身を含む): 656377344

約数和(自身を除く): 408627424

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 67, 80, 88, 110, 121, 134, 160, 176, 191, 220, 242, 268, 335, 352, 382, 440, 484, 536, 605, 670, 737, 764, 880, 955, 968, 1072, 1210, 1340, 1474, 1528, 1760, 1910, 1936, 2101, 2144, 2420, 2680, 2948, 3056, 3685, 3820, 3872, 4202, 4840, 5360, 5896, 6112, 7370, 7640, 8107, 8404, 9680, 10505, 10720, 11792, 12797, 14740, 15280, 16214, 16808, 19360, 21010, 23111, 23584, 25594, 29480, 30560, 32428, 33616, 40535, 42020, 46222, 51188, 58960, 63985, 64856, 67232, 81070, 84040, 92444, 102376, 115555, 117920, 127970, 129712, 140767, 162140, 168080, 184888, 204752, 231110, 255940, 259424, 281534, 324280, 336160, 369776, 409504, 462220, 511880, 563068, 648560, 703835, 739552, 924440, 1023760, 1126136, 1297120, 1407670, 1548437, 1848880, 2047520, 2252272, 2815340, 3096874, 3697760, 4504544, 5630680, 6193748, 7742185, 11261360, 12387496, 15484370, 22522720, 24774992, 30968740, 49549984, 61937480, 123874960, 247749920]

約数ペア:

[(1, 247749920), (2, 123874960), (4, 61937480), (5, 49549984), (8, 30968740), (10, 24774992), (11, 22522720), (16, 15484370), (20, 12387496), (22, 11261360), (32, 7742185), (40, 6193748), (44, 5630680), (55, 4504544), (67, 3697760), (80, 3096874), (88, 2815340), (110, 2252272), (121, 2047520), (134, 1848880), (160, 1548437), (176, 1407670), (191, 1297120), (220, 1126136), (242, 1023760), (268, 924440), (335, 739552), (352, 703835), (382, 648560), (440, 563068), (484, 511880), (536, 462220), (605, 409504), (670, 369776), (737, 336160), (764, 324280), (880, 281534), (955, 259424), (968, 255940), (1072, 231110), (1210, 204752), (1340, 184888), (1474, 168080), (1528, 162140), (1760, 140767), (1910, 129712), (1936, 127970), (2101, 117920), (2144, 115555), (2420, 102376), (2680, 92444), (2948, 84040), (3056, 81070), (3685, 67232), (3820, 64856), (3872, 63985), (4202, 58960), (4840, 51188), (5360, 46222), (5896, 42020), (6112, 40535), (7370, 33616), (7640, 32428), (8107, 30560), (8404, 29480), (9680, 25594), (10505, 23584), (10720, 23111), (11792, 21010), (12797, 19360), (14740, 16808), (15280, 16214)]