661946880

素因数分解:

$2^9\times 3^1\times 5^1\times 7^2\times {\mathrm{1759}}^1$

素因数の和:1799

約数の個数: 240

約数和(自身を含む): 2463056640

約数和(自身を除く): 1801109760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 512, 560, 588, 640, 672, 735, 768, 784, 840, 896, 960, 980, 1120, 1176, 1280, 1344, 1470, 1536, 1568, 1680, 1759, 1792, 1920, 1960, 2240, 2352, 2560, 2688, 2940, 3136, 3360, 3518, 3584, 3840, 3920, 4480, 4704, 5277, 5376, 5880, 6272, 6720, 7036, 7680, 7840, 8795, 8960, 9408, 10554, 10752, 11760, 12313, 12544, 13440, 14072, 15680, 17590, 17920, 18816, 21108, 23520, 24626, 25088, 26385, 26880, 28144, 31360, 35180, 36939, 37632, 42216, 47040, 49252, 52770, 53760, 56288, 61565, 62720, 70360, 73878, 75264, 84432, 86191, 94080, 98504, 105540, 112576, 123130, 125440, 140720, 147756, 168864, 172382, 184695, 188160, 197008, 211080, 225152, 246260, 258573, 281440, 295512, 337728, 344764, 369390, 376320, 394016, 422160, 430955, 450304, 492520, 517146, 562880, 591024, 675456, 689528, 738780, 788032, 844320, 861910, 900608, 985040, 1034292, 1125760, 1182048, 1292865, 1350912, 1379056, 1477560, 1576064, 1688640, 1723820, 1970080, 2068584, 2251520, 2364096, 2585730, 2701824, 2758112, 2955120, 3152128, 3377280, 3447640, 3940160, 4137168, 4503040, 4728192, 5171460, 5516224, 5910240, 6304256, 6754560, 6895280, 7880320, 8274336, 9456384, 10342920, 11032448, 11820480, 13509120, 13790560, 15760640, 16548672, 18912768, 20685840, 22064896, 23640960, 27581120, 31521280, 33097344, 41371680, 44129792, 47281920, 55162240, 66194688, 82743360, 94563840, 110324480, 132389376, 165486720, 220648960, 330973440, 661946880]

約数ペア:

[(1, 661946880), (2, 330973440), (3, 220648960), (4, 165486720), (5, 132389376), (6, 110324480), (7, 94563840), (8, 82743360), (10, 66194688), (12, 55162240), (14, 47281920), (15, 44129792), (16, 41371680), (20, 33097344), (21, 31521280), (24, 27581120), (28, 23640960), (30, 22064896), (32, 20685840), (35, 18912768), (40, 16548672), (42, 15760640), (48, 13790560), (49, 13509120), (56, 11820480), (60, 11032448), (64, 10342920), (70, 9456384), (80, 8274336), (84, 7880320), (96, 6895280), (98, 6754560), (105, 6304256), (112, 5910240), (120, 5516224), (128, 5171460), (140, 4728192), (147, 4503040), (160, 4137168), (168, 3940160), (192, 3447640), (196, 3377280), (210, 3152128), (224, 2955120), (240, 2758112), (245, 2701824), (256, 2585730), (280, 2364096), (294, 2251520), (320, 2068584), (336, 1970080), (384, 1723820), (392, 1688640), (420, 1576064), (448, 1477560), (480, 1379056), (490, 1350912), (512, 1292865), (560, 1182048), (588, 1125760), (640, 1034292), (672, 985040), (735, 900608), (768, 861910), (784, 844320), (840, 788032), (896, 738780), (960, 689528), (980, 675456), (1120, 591024), (1176, 562880), (1280, 517146), (1344, 492520), (1470, 450304), (1536, 430955), (1568, 422160), (1680, 394016), (1759, 376320), (1792, 369390), (1920, 344764), (1960, 337728), (2240, 295512), (2352, 281440), (2560, 258573), (2688, 246260), (2940, 225152), (3136, 211080), (3360, 197008), (3518, 188160), (3584, 184695), (3840, 172382), (3920, 168864), (4480, 147756), (4704, 140720), (5277, 125440), (5376, 123130), (5880, 112576), (6272, 105540), (6720, 98504), (7036, 94080), (7680, 86191), (7840, 84432), (8795, 75264), (8960, 73878), (9408, 70360), (10554, 62720), (10752, 61565), (11760, 56288), (12313, 53760), (12544, 52770), (13440, 49252), (14072, 47040), (15680, 42216), (17590, 37632), (17920, 36939), (18816, 35180), (21108, 31360), (23520, 28144), (24626, 26880), (25088, 26385)]