1665721680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{719}}^1$

素因数の和:946

約数の個数: 240

約数和(自身を含む): 6045684480

約数和(自身を除く): 4379962800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 197, 210, 240, 245, 280, 294, 336, 392, 394, 420, 490, 560, 588, 591, 719, 735, 784, 788, 840, 980, 985, 1176, 1182, 1379, 1438, 1470, 1576, 1680, 1960, 1970, 2157, 2352, 2364, 2758, 2876, 2940, 2955, 3152, 3595, 3920, 3940, 4137, 4314, 4728, 5033, 5516, 5752, 5880, 5910, 6895, 7190, 7880, 8274, 8628, 9456, 9653, 10066, 10785, 11032, 11504, 11760, 11820, 13790, 14380, 15099, 15760, 16548, 17256, 19306, 20132, 20685, 21570, 22064, 23640, 25165, 27580, 28760, 28959, 30198, 33096, 34512, 35231, 38612, 40264, 41370, 43140, 47280, 48265, 50330, 55160, 57520, 57918, 60396, 66192, 70462, 75495, 77224, 80528, 82740, 86280, 96530, 100660, 105693, 110320, 115836, 120792, 140924, 141643, 144795, 150990, 154448, 165480, 172560, 176155, 193060, 201320, 211386, 231672, 241584, 281848, 283286, 289590, 301980, 330960, 352310, 386120, 402640, 422772, 424929, 463344, 528465, 563696, 566572, 579180, 603960, 704620, 708215, 772240, 845544, 849858, 991501, 1056930, 1133144, 1158360, 1207920, 1409240, 1416430, 1691088, 1699716, 1983002, 2113860, 2124645, 2266288, 2316720, 2818480, 2832860, 2974503, 3399432, 3966004, 4227720, 4249290, 4957505, 5665720, 5949006, 6798864, 6940507, 7932008, 8455440, 8498580, 9915010, 11331440, 11898012, 13881014, 14872515, 15864016, 16997160, 19830020, 20821521, 23796024, 27762028, 29745030, 33994320, 34702535, 39660040, 41643042, 47592048, 55524056, 59490060, 69405070, 79320080, 83286084, 104107605, 111048112, 118980120, 138810140, 166572168, 208215210, 237960240, 277620280, 333144336, 416430420, 555240560, 832860840, 1665721680]

約数ペア:

[(1, 1665721680), (2, 832860840), (3, 555240560), (4, 416430420), (5, 333144336), (6, 277620280), (7, 237960240), (8, 208215210), (10, 166572168), (12, 138810140), (14, 118980120), (15, 111048112), (16, 104107605), (20, 83286084), (21, 79320080), (24, 69405070), (28, 59490060), (30, 55524056), (35, 47592048), (40, 41643042), (42, 39660040), (48, 34702535), (49, 33994320), (56, 29745030), (60, 27762028), (70, 23796024), (80, 20821521), (84, 19830020), (98, 16997160), (105, 15864016), (112, 14872515), (120, 13881014), (140, 11898012), (147, 11331440), (168, 9915010), (196, 8498580), (197, 8455440), (210, 7932008), (240, 6940507), (245, 6798864), (280, 5949006), (294, 5665720), (336, 4957505), (392, 4249290), (394, 4227720), (420, 3966004), (490, 3399432), (560, 2974503), (588, 2832860), (591, 2818480), (719, 2316720), (735, 2266288), (784, 2124645), (788, 2113860), (840, 1983002), (980, 1699716), (985, 1691088), (1176, 1416430), (1182, 1409240), (1379, 1207920), (1438, 1158360), (1470, 1133144), (1576, 1056930), (1680, 991501), (1960, 849858), (1970, 845544), (2157, 772240), (2352, 708215), (2364, 704620), (2758, 603960), (2876, 579180), (2940, 566572), (2955, 563696), (3152, 528465), (3595, 463344), (3920, 424929), (3940, 422772), (4137, 402640), (4314, 386120), (4728, 352310), (5033, 330960), (5516, 301980), (5752, 289590), (5880, 283286), (5910, 281848), (6895, 241584), (7190, 231672), (7880, 211386), (8274, 201320), (8628, 193060), (9456, 176155), (9653, 172560), (10066, 165480), (10785, 154448), (11032, 150990), (11504, 144795), (11760, 141643), (11820, 140924), (13790, 120792), (14380, 115836), (15099, 110320), (15760, 105693), (16548, 100660), (17256, 96530), (19306, 86280), (20132, 82740), (20685, 80528), (21570, 77224), (22064, 75495), (23640, 70462), (25165, 66192), (27580, 60396), (28760, 57918), (28959, 57520), (30198, 55160), (33096, 50330), (34512, 48265), (35231, 47280), (38612, 43140), (40264, 41370)]