81721055520

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{161683}}^1$

素因数の和:161726

約数の個数: 288

約数和(自身を含む): 311449948992

約数和(自身を除く): 229728893472

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, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 195, 208, 216, 234, 240, 243, 260, 270, 288, 312, 324, 351, 360, 390, 405, 416, 432, 468, 480, 486, 520, 540, 585, 624, 648, 702, 720, 780, 810, 864, 936, 972, 1040, 1053, 1080, 1170, 1215, 1248, 1296, 1404, 1440, 1560, 1620, 1755, 1872, 1944, 2080, 2106, 2160, 2340, 2430, 2592, 2808, 3120, 3159, 3240, 3510, 3744, 3888, 4212, 4320, 4680, 4860, 5265, 5616, 6240, 6318, 6480, 7020, 7776, 8424, 9360, 9720, 10530, 11232, 12636, 12960, 14040, 15795, 16848, 18720, 19440, 21060, 25272, 28080, 31590, 33696, 38880, 42120, 50544, 56160, 63180, 84240, 101088, 126360, 161683, 168480, 252720, 323366, 485049, 505440, 646732, 808415, 970098, 1293464, 1455147, 1616830, 1940196, 2101879, 2425245, 2586928, 2910294, 3233660, 3880392, 4203758, 4365441, 4850490, 5173856, 5820588, 6305637, 6467320, 7275735, 7760784, 8407516, 8730882, 9700980, 10509395, 11641176, 12611274, 12934640, 13096323, 14551470, 15521568, 16815032, 17461764, 18916911, 19401960, 21018790, 21827205, 23282352, 25222548, 25869280, 26192646, 29102940, 31528185, 33630064, 34923528, 37833822, 38803920, 39288969, 42037580, 43654410, 46564704, 50445096, 52385292, 56750733, 58205880, 63056370, 65481615, 67260128, 69847056, 75667644, 77607840, 78577938, 84075160, 87308820, 94584555, 100890192, 104770584, 113501466, 116411760, 126112740, 130963230, 139694112, 151335288, 157155876, 168150320, 170252199, 174617640, 189169110, 196444845, 201780384, 209541168, 227002932, 232823520, 252225480, 261926460, 283753665, 302670576, 314311752, 336300640, 340504398, 349235280, 378338220, 392889690, 419082336, 454005864, 504450960, 510756597, 523852920, 567507330, 605341152, 628623504, 681008796, 698470560, 756676440, 785779380, 851260995, 908011728, 1008901920, 1021513194, 1047705840, 1135014660, 1257247008, 1362017592, 1513352880, 1571558760, 1702521990, 1816023456, 2043026388, 2095411680, 2270029320, 2553782985, 2724035184, 3026705760, 3143117520, 3405043980, 4086052776, 4540058640, 5107565970, 5448070368, 6286235040, 6810087960, 8172105552, 9080117280, 10215131940, 13620175920, 16344211104, 20430263880, 27240351840, 40860527760, 81721055520]

約数ペア:

[(1, 81721055520), (2, 40860527760), (3, 27240351840), (4, 20430263880), (5, 16344211104), (6, 13620175920), (8, 10215131940), (9, 9080117280), (10, 8172105552), (12, 6810087960), (13, 6286235040), (15, 5448070368), (16, 5107565970), (18, 4540058640), (20, 4086052776), (24, 3405043980), (26, 3143117520), (27, 3026705760), (30, 2724035184), (32, 2553782985), (36, 2270029320), (39, 2095411680), (40, 2043026388), (45, 1816023456), (48, 1702521990), (52, 1571558760), (54, 1513352880), (60, 1362017592), (65, 1257247008), (72, 1135014660), (78, 1047705840), (80, 1021513194), (81, 1008901920), (90, 908011728), (96, 851260995), (104, 785779380), (108, 756676440), (117, 698470560), (120, 681008796), (130, 628623504), (135, 605341152), (144, 567507330), (156, 523852920), (160, 510756597), (162, 504450960), (180, 454005864), (195, 419082336), (208, 392889690), (216, 378338220), (234, 349235280), (240, 340504398), (243, 336300640), (260, 314311752), (270, 302670576), (288, 283753665), (312, 261926460), (324, 252225480), (351, 232823520), (360, 227002932), (390, 209541168), (405, 201780384), (416, 196444845), (432, 189169110), (468, 174617640), (480, 170252199), (486, 168150320), (520, 157155876), (540, 151335288), (585, 139694112), (624, 130963230), (648, 126112740), (702, 116411760), (720, 113501466), (780, 104770584), (810, 100890192), (864, 94584555), (936, 87308820), (972, 84075160), (1040, 78577938), (1053, 77607840), (1080, 75667644), (1170, 69847056), (1215, 67260128), (1248, 65481615), (1296, 63056370), (1404, 58205880), (1440, 56750733), (1560, 52385292), (1620, 50445096), (1755, 46564704), (1872, 43654410), (1944, 42037580), (2080, 39288969), (2106, 38803920), (2160, 37833822), (2340, 34923528), (2430, 33630064), (2592, 31528185), (2808, 29102940), (3120, 26192646), (3159, 25869280), (3240, 25222548), (3510, 23282352), (3744, 21827205), (3888, 21018790), (4212, 19401960), (4320, 18916911), (4680, 17461764), (4860, 16815032), (5265, 15521568), (5616, 14551470), (6240, 13096323), (6318, 12934640), (6480, 12611274), (7020, 11641176), (7776, 10509395), (8424, 9700980), (9360, 8730882), (9720, 8407516), (10530, 7760784), (11232, 7275735), (12636, 6467320), (12960, 6305637), (14040, 5820588), (15795, 5173856), (16848, 4850490), (18720, 4365441), (19440, 4203758), (21060, 3880392), (25272, 3233660), (28080, 2910294), (31590, 2586928), (33696, 2425245), (38880, 2101879), (42120, 1940196), (50544, 1616830), (56160, 1455147), (63180, 1293464), (84240, 970098), (101088, 808415), (126360, 646732), (161683, 505440), (168480, 485049), (252720, 323366)]