646738560

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2879}}^1$

素因数の和:2920

約数の個数: 256

約数和(自身を含む): 2467584000

約数和(自身を除く): 1820845440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 128, 130, 135, 144, 156, 160, 180, 192, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 351, 360, 384, 390, 416, 432, 468, 480, 520, 540, 576, 585, 624, 640, 702, 720, 780, 832, 864, 936, 960, 1040, 1080, 1152, 1170, 1248, 1404, 1440, 1560, 1664, 1728, 1755, 1872, 1920, 2080, 2160, 2340, 2496, 2808, 2879, 2880, 3120, 3456, 3510, 3744, 4160, 4320, 4680, 4992, 5616, 5758, 5760, 6240, 7020, 7488, 8320, 8637, 8640, 9360, 11232, 11516, 12480, 14040, 14395, 14976, 17274, 17280, 18720, 22464, 23032, 24960, 25911, 28080, 28790, 34548, 37427, 37440, 43185, 44928, 46064, 51822, 56160, 57580, 69096, 74854, 74880, 77733, 86370, 92128, 103644, 112281, 112320, 115160, 129555, 138192, 149708, 155466, 172740, 184256, 187135, 207288, 224562, 224640, 230320, 259110, 276384, 299416, 310932, 336843, 345480, 368512, 374270, 388665, 414576, 449124, 460640, 518220, 552768, 561405, 598832, 621864, 673686, 690960, 748540, 777330, 829152, 898248, 921280, 1010529, 1036440, 1105536, 1122810, 1197664, 1243728, 1347372, 1381920, 1497080, 1554660, 1658304, 1684215, 1796496, 1842560, 2021058, 2072880, 2245620, 2395328, 2487456, 2694744, 2763840, 2994160, 3109320, 3316608, 3368430, 3592992, 4042116, 4145760, 4491240, 4790656, 4974912, 5052645, 5389488, 5527680, 5988320, 6218640, 6736860, 7185984, 8084232, 8291520, 8982480, 9949824, 10105290, 10778976, 11976640, 12437280, 13473720, 14371968, 16168464, 16583040, 17964960, 20210580, 21557952, 23953280, 24874560, 26947440, 32336928, 35929920, 40421160, 43115904, 49749120, 53894880, 64673856, 71859840, 80842320, 107789760, 129347712, 161684640, 215579520, 323369280, 646738560]

約数ペア:

[(1, 646738560), (2, 323369280), (3, 215579520), (4, 161684640), (5, 129347712), (6, 107789760), (8, 80842320), (9, 71859840), (10, 64673856), (12, 53894880), (13, 49749120), (15, 43115904), (16, 40421160), (18, 35929920), (20, 32336928), (24, 26947440), (26, 24874560), (27, 23953280), (30, 21557952), (32, 20210580), (36, 17964960), (39, 16583040), (40, 16168464), (45, 14371968), (48, 13473720), (52, 12437280), (54, 11976640), (60, 10778976), (64, 10105290), (65, 9949824), (72, 8982480), (78, 8291520), (80, 8084232), (90, 7185984), (96, 6736860), (104, 6218640), (108, 5988320), (117, 5527680), (120, 5389488), (128, 5052645), (130, 4974912), (135, 4790656), (144, 4491240), (156, 4145760), (160, 4042116), (180, 3592992), (192, 3368430), (195, 3316608), (208, 3109320), (216, 2994160), (234, 2763840), (240, 2694744), (260, 2487456), (270, 2395328), (288, 2245620), (312, 2072880), (320, 2021058), (351, 1842560), (360, 1796496), (384, 1684215), (390, 1658304), (416, 1554660), (432, 1497080), (468, 1381920), (480, 1347372), (520, 1243728), (540, 1197664), (576, 1122810), (585, 1105536), (624, 1036440), (640, 1010529), (702, 921280), (720, 898248), (780, 829152), (832, 777330), (864, 748540), (936, 690960), (960, 673686), (1040, 621864), (1080, 598832), (1152, 561405), (1170, 552768), (1248, 518220), (1404, 460640), (1440, 449124), (1560, 414576), (1664, 388665), (1728, 374270), (1755, 368512), (1872, 345480), (1920, 336843), (2080, 310932), (2160, 299416), (2340, 276384), (2496, 259110), (2808, 230320), (2879, 224640), (2880, 224562), (3120, 207288), (3456, 187135), (3510, 184256), (3744, 172740), (4160, 155466), (4320, 149708), (4680, 138192), (4992, 129555), (5616, 115160), (5758, 112320), (5760, 112281), (6240, 103644), (7020, 92128), (7488, 86370), (8320, 77733), (8637, 74880), (8640, 74854), (9360, 69096), (11232, 57580), (11516, 56160), (12480, 51822), (14040, 46064), (14395, 44928), (14976, 43185), (17274, 37440), (17280, 37427), (18720, 34548), (22464, 28790), (23032, 28080), (24960, 25911)]