19989918720

素因数分解:

$2^{10}\times 3^5\times 5^1\times {\mathrm{16067}}^1$

素因数の和:16107

約数の個数: 264

約数和(自身を含む): 71834372064

約数和(自身を除く): 51844453344

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 972, 1024, 1080, 1152, 1215, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 1944, 2160, 2304, 2430, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 3888, 4320, 4608, 4860, 5120, 5184, 5760, 6480, 6912, 7680, 7776, 8640, 9216, 9720, 10368, 11520, 12960, 13824, 15360, 15552, 16067, 17280, 19440, 20736, 23040, 25920, 27648, 31104, 32134, 34560, 38880, 41472, 46080, 48201, 51840, 62208, 64268, 69120, 77760, 80335, 82944, 96402, 103680, 124416, 128536, 138240, 144603, 155520, 160670, 192804, 207360, 241005, 248832, 257072, 289206, 311040, 321340, 385608, 414720, 433809, 482010, 514144, 578412, 622080, 642680, 723015, 771216, 867618, 964020, 1028288, 1156824, 1244160, 1285360, 1301427, 1446030, 1542432, 1735236, 1928040, 2056576, 2169045, 2313648, 2570720, 2602854, 2892060, 3084864, 3470472, 3856080, 3904281, 4113152, 4338090, 4627296, 5141440, 5205708, 5784120, 6169728, 6507135, 6940944, 7712160, 7808562, 8226304, 8676180, 9254592, 10282880, 10411416, 11568240, 12339456, 13014270, 13881888, 15424320, 15617124, 16452608, 17352360, 18509184, 19521405, 20565760, 20822832, 23136480, 24678912, 26028540, 27763776, 30848640, 31234248, 34704720, 37018368, 39042810, 41131520, 41645664, 46272960, 49357824, 52057080, 55527552, 61697280, 62468496, 69409440, 74036736, 78085620, 82263040, 83291328, 92545920, 104114160, 111055104, 123394560, 124936992, 138818880, 148073472, 156171240, 166582656, 185091840, 208228320, 222110208, 246789120, 249873984, 277637760, 312342480, 333165312, 370183680, 416456640, 444220416, 499747968, 555275520, 624684960, 666330624, 740367360, 832913280, 999495936, 1110551040, 1249369920, 1332661248, 1665826560, 1998991872, 2221102080, 2498739840, 3331653120, 3997983744, 4997479680, 6663306240, 9994959360, 19989918720]

約数ペア:

[(1, 19989918720), (2, 9994959360), (3, 6663306240), (4, 4997479680), (5, 3997983744), (6, 3331653120), (8, 2498739840), (9, 2221102080), (10, 1998991872), (12, 1665826560), (15, 1332661248), (16, 1249369920), (18, 1110551040), (20, 999495936), (24, 832913280), (27, 740367360), (30, 666330624), (32, 624684960), (36, 555275520), (40, 499747968), (45, 444220416), (48, 416456640), (54, 370183680), (60, 333165312), (64, 312342480), (72, 277637760), (80, 249873984), (81, 246789120), (90, 222110208), (96, 208228320), (108, 185091840), (120, 166582656), (128, 156171240), (135, 148073472), (144, 138818880), (160, 124936992), (162, 123394560), (180, 111055104), (192, 104114160), (216, 92545920), (240, 83291328), (243, 82263040), (256, 78085620), (270, 74036736), (288, 69409440), (320, 62468496), (324, 61697280), (360, 55527552), (384, 52057080), (405, 49357824), (432, 46272960), (480, 41645664), (486, 41131520), (512, 39042810), (540, 37018368), (576, 34704720), (640, 31234248), (648, 30848640), (720, 27763776), (768, 26028540), (810, 24678912), (864, 23136480), (960, 20822832), (972, 20565760), (1024, 19521405), (1080, 18509184), (1152, 17352360), (1215, 16452608), (1280, 15617124), (1296, 15424320), (1440, 13881888), (1536, 13014270), (1620, 12339456), (1728, 11568240), (1920, 10411416), (1944, 10282880), (2160, 9254592), (2304, 8676180), (2430, 8226304), (2560, 7808562), (2592, 7712160), (2880, 6940944), (3072, 6507135), (3240, 6169728), (3456, 5784120), (3840, 5205708), (3888, 5141440), (4320, 4627296), (4608, 4338090), (4860, 4113152), (5120, 3904281), (5184, 3856080), (5760, 3470472), (6480, 3084864), (6912, 2892060), (7680, 2602854), (7776, 2570720), (8640, 2313648), (9216, 2169045), (9720, 2056576), (10368, 1928040), (11520, 1735236), (12960, 1542432), (13824, 1446030), (15360, 1301427), (15552, 1285360), (16067, 1244160), (17280, 1156824), (19440, 1028288), (20736, 964020), (23040, 867618), (25920, 771216), (27648, 723015), (31104, 642680), (32134, 622080), (34560, 578412), (38880, 514144), (41472, 482010), (46080, 433809), (48201, 414720), (51840, 385608), (62208, 321340), (64268, 311040), (69120, 289206), (77760, 257072), (80335, 248832), (82944, 241005), (96402, 207360), (103680, 192804), (124416, 160670), (128536, 155520), (138240, 144603)]