1291230720

素因数分解:

$2^9\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:527

約数の個数: 400

約数和(自身を含む): 4990930560

約数和(自身を除く): 3699699840

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, 81, 90, 96, 104, 108, 117, 120, 128, 130, 135, 144, 156, 160, 162, 180, 192, 195, 208, 216, 234, 240, 256, 260, 270, 288, 312, 320, 324, 351, 360, 384, 390, 405, 416, 432, 468, 479, 480, 512, 520, 540, 576, 585, 624, 640, 648, 702, 720, 768, 780, 810, 832, 864, 936, 958, 960, 1040, 1053, 1080, 1152, 1170, 1248, 1280, 1296, 1404, 1437, 1440, 1536, 1560, 1620, 1664, 1728, 1755, 1872, 1916, 1920, 2080, 2106, 2160, 2304, 2340, 2395, 2496, 2560, 2592, 2808, 2874, 2880, 3120, 3240, 3328, 3456, 3510, 3744, 3832, 3840, 4160, 4212, 4311, 4320, 4608, 4680, 4790, 4992, 5184, 5265, 5616, 5748, 5760, 6227, 6240, 6480, 6656, 6912, 7020, 7185, 7488, 7664, 7680, 8320, 8424, 8622, 8640, 9360, 9580, 9984, 10368, 10530, 11232, 11496, 11520, 12454, 12480, 12933, 12960, 13824, 14040, 14370, 14976, 15328, 16640, 16848, 17244, 17280, 18681, 18720, 19160, 19968, 20736, 21060, 21555, 22464, 22992, 23040, 24908, 24960, 25866, 25920, 28080, 28740, 29952, 30656, 31135, 33280, 33696, 34488, 34560, 37362, 37440, 38320, 38799, 41472, 42120, 43110, 44928, 45984, 49816, 49920, 51732, 51840, 56043, 56160, 57480, 59904, 61312, 62270, 64665, 67392, 68976, 69120, 74724, 74880, 76640, 77598, 84240, 86220, 89856, 91968, 93405, 99632, 99840, 103464, 103680, 112086, 112320, 114960, 122624, 124540, 129330, 134784, 137952, 149448, 149760, 153280, 155196, 168129, 168480, 172440, 179712, 183936, 186810, 193995, 199264, 206928, 207360, 224172, 224640, 229920, 245248, 249080, 258660, 269568, 275904, 280215, 298896, 299520, 306560, 310392, 336258, 336960, 344880, 367872, 373620, 387990, 398528, 413856, 448344, 449280, 459840, 498160, 504387, 517320, 539136, 551808, 560430, 597792, 613120, 620784, 672516, 673920, 689760, 735744, 747240, 775980, 797056, 827712, 840645, 896688, 898560, 919680, 996320, 1008774, 1034640, 1103616, 1120860, 1195584, 1226240, 1241568, 1345032, 1347840, 1379520, 1494480, 1551960, 1594112, 1655424, 1681290, 1793376, 1839360, 1992640, 2017548, 2069280, 2207232, 2241720, 2391168, 2483136, 2521935, 2690064, 2695680, 2759040, 2988960, 3103920, 3188224, 3310848, 3362580, 3586752, 3678720, 3985280, 4035096, 4138560, 4483440, 4782336, 4966272, 5043870, 5380128, 5518080, 5977920, 6207840, 6621696, 6725160, 7173504, 7970560, 8070192, 8277120, 8966880, 9564672, 9932544, 10087740, 10760256, 11036160, 11955840, 12415680, 13450320, 14347008, 15941120, 16140384, 16554240, 17933760, 19865088, 20175480, 21520512, 23911680, 24831360, 26900640, 28694016, 32280768, 33108480, 35867520, 40350960, 43041024, 47823360, 49662720, 53801280, 64561536, 71735040, 80701920, 86082048, 99325440, 107602560, 129123072, 143470080, 161403840, 215205120, 258246144, 322807680, 430410240, 645615360, 1291230720]

約数ペア:

[(1, 1291230720), (2, 645615360), (3, 430410240), (4, 322807680), (5, 258246144), (6, 215205120), (8, 161403840), (9, 143470080), (10, 129123072), (12, 107602560), (13, 99325440), (15, 86082048), (16, 80701920), (18, 71735040), (20, 64561536), (24, 53801280), (26, 49662720), (27, 47823360), (30, 43041024), (32, 40350960), (36, 35867520), (39, 33108480), (40, 32280768), (45, 28694016), (48, 26900640), (52, 24831360), (54, 23911680), (60, 21520512), (64, 20175480), (65, 19865088), (72, 17933760), (78, 16554240), (80, 16140384), (81, 15941120), (90, 14347008), (96, 13450320), (104, 12415680), (108, 11955840), (117, 11036160), (120, 10760256), (128, 10087740), (130, 9932544), (135, 9564672), (144, 8966880), (156, 8277120), (160, 8070192), (162, 7970560), (180, 7173504), (192, 6725160), (195, 6621696), (208, 6207840), (216, 5977920), (234, 5518080), (240, 5380128), (256, 5043870), (260, 4966272), (270, 4782336), (288, 4483440), (312, 4138560), (320, 4035096), (324, 3985280), (351, 3678720), (360, 3586752), (384, 3362580), (390, 3310848), (405, 3188224), (416, 3103920), (432, 2988960), (468, 2759040), (479, 2695680), (480, 2690064), (512, 2521935), (520, 2483136), (540, 2391168), (576, 2241720), (585, 2207232), (624, 2069280), (640, 2017548), (648, 1992640), (702, 1839360), (720, 1793376), (768, 1681290), (780, 1655424), (810, 1594112), (832, 1551960), (864, 1494480), (936, 1379520), (958, 1347840), (960, 1345032), (1040, 1241568), (1053, 1226240), (1080, 1195584), (1152, 1120860), (1170, 1103616), (1248, 1034640), (1280, 1008774), (1296, 996320), (1404, 919680), (1437, 898560), (1440, 896688), (1536, 840645), (1560, 827712), (1620, 797056), (1664, 775980), (1728, 747240), (1755, 735744), (1872, 689760), (1916, 673920), (1920, 672516), (2080, 620784), (2106, 613120), (2160, 597792), (2304, 560430), (2340, 551808), (2395, 539136), (2496, 517320), (2560, 504387), (2592, 498160), (2808, 459840), (2874, 449280), (2880, 448344), (3120, 413856), (3240, 398528), (3328, 387990), (3456, 373620), (3510, 367872), (3744, 344880), (3832, 336960), (3840, 336258), (4160, 310392), (4212, 306560), (4311, 299520), (4320, 298896), (4608, 280215), (4680, 275904), (4790, 269568), (4992, 258660), (5184, 249080), (5265, 245248), (5616, 229920), (5748, 224640), (5760, 224172), (6227, 207360), (6240, 206928), (6480, 199264), (6656, 193995), (6912, 186810), (7020, 183936), (7185, 179712), (7488, 172440), (7664, 168480), (7680, 168129), (8320, 155196), (8424, 153280), (8622, 149760), (8640, 149448), (9360, 137952), (9580, 134784), (9984, 129330), (10368, 124540), (10530, 122624), (11232, 114960), (11496, 112320), (11520, 112086), (12454, 103680), (12480, 103464), (12933, 99840), (12960, 99632), (13824, 93405), (14040, 91968), (14370, 89856), (14976, 86220), (15328, 84240), (16640, 77598), (16848, 76640), (17244, 74880), (17280, 74724), (18681, 69120), (18720, 68976), (19160, 67392), (19968, 64665), (20736, 62270), (21060, 61312), (21555, 59904), (22464, 57480), (22992, 56160), (23040, 56043), (24908, 51840), (24960, 51732), (25866, 49920), (25920, 49816), (28080, 45984), (28740, 44928), (29952, 43110), (30656, 42120), (31135, 41472), (33280, 38799), (33696, 38320), (34488, 37440), (34560, 37362)]