640638720

素因数分解:

$2^8\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 360

約数和(自身を含む): 2368374624

約数和(自身を除く): 1727735904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 64, 72, 74, 80, 81, 90, 96, 108, 111, 120, 128, 135, 144, 148, 160, 162, 167, 180, 185, 192, 216, 222, 240, 256, 270, 288, 296, 320, 324, 333, 334, 360, 370, 384, 405, 432, 444, 480, 501, 540, 555, 576, 592, 640, 648, 666, 668, 720, 740, 768, 810, 835, 864, 888, 960, 999, 1002, 1080, 1110, 1152, 1184, 1280, 1296, 1332, 1336, 1440, 1480, 1503, 1620, 1665, 1670, 1728, 1776, 1920, 1998, 2004, 2160, 2220, 2304, 2368, 2505, 2592, 2664, 2672, 2880, 2960, 2997, 3006, 3240, 3330, 3340, 3456, 3552, 3840, 3996, 4008, 4320, 4440, 4509, 4736, 4995, 5010, 5184, 5328, 5344, 5760, 5920, 5994, 6012, 6179, 6480, 6660, 6680, 6912, 7104, 7515, 7992, 8016, 8640, 8880, 9018, 9472, 9990, 10020, 10368, 10656, 10688, 11520, 11840, 11988, 12024, 12358, 12960, 13320, 13360, 13527, 14208, 14985, 15030, 15984, 16032, 17280, 17760, 18036, 18537, 19980, 20040, 20736, 21312, 21376, 22545, 23680, 23976, 24048, 24716, 25920, 26640, 26720, 27054, 28416, 29970, 30060, 30895, 31968, 32064, 34560, 35520, 36072, 37074, 39960, 40080, 42624, 42752, 45090, 47360, 47952, 48096, 49432, 51840, 53280, 53440, 54108, 55611, 59940, 60120, 61790, 63936, 64128, 67635, 71040, 72144, 74148, 79920, 80160, 85248, 90180, 92685, 95904, 96192, 98864, 103680, 106560, 106880, 108216, 111222, 119880, 120240, 123580, 127872, 128256, 135270, 142080, 144288, 148296, 159840, 160320, 166833, 180360, 185370, 191808, 192384, 197728, 213120, 213760, 216432, 222444, 239760, 240480, 247160, 255744, 270540, 278055, 288576, 296592, 319680, 320640, 333666, 360720, 370740, 383616, 384768, 395456, 426240, 432864, 444888, 479520, 480960, 494320, 500499, 541080, 556110, 577152, 593184, 639360, 641280, 667332, 721440, 741480, 767232, 790912, 834165, 865728, 889776, 959040, 961920, 988640, 1000998, 1082160, 1112220, 1154304, 1186368, 1278720, 1334664, 1442880, 1482960, 1581824, 1668330, 1731456, 1779552, 1918080, 1923840, 1977280, 2001996, 2164320, 2224440, 2372736, 2502495, 2669328, 2885760, 2965920, 3336660, 3462912, 3559104, 3836160, 3954560, 4003992, 4328640, 4448880, 4745472, 5004990, 5338656, 5771520, 5931840, 6673320, 7118208, 7909120, 8007984, 8657280, 8897760, 10009980, 10677312, 11863680, 13346640, 14236416, 16015968, 17314560, 17795520, 20019960, 21354624, 23727360, 26693280, 32031936, 35591040, 40039920, 42709248, 53386560, 64063872, 71182080, 80079840, 106773120, 128127744, 160159680, 213546240, 320319360, 640638720]

約数ペア:

[(1, 640638720), (2, 320319360), (3, 213546240), (4, 160159680), (5, 128127744), (6, 106773120), (8, 80079840), (9, 71182080), (10, 64063872), (12, 53386560), (15, 42709248), (16, 40039920), (18, 35591040), (20, 32031936), (24, 26693280), (27, 23727360), (30, 21354624), (32, 20019960), (36, 17795520), (37, 17314560), (40, 16015968), (45, 14236416), (48, 13346640), (54, 11863680), (60, 10677312), (64, 10009980), (72, 8897760), (74, 8657280), (80, 8007984), (81, 7909120), (90, 7118208), (96, 6673320), (108, 5931840), (111, 5771520), (120, 5338656), (128, 5004990), (135, 4745472), (144, 4448880), (148, 4328640), (160, 4003992), (162, 3954560), (167, 3836160), (180, 3559104), (185, 3462912), (192, 3336660), (216, 2965920), (222, 2885760), (240, 2669328), (256, 2502495), (270, 2372736), (288, 2224440), (296, 2164320), (320, 2001996), (324, 1977280), (333, 1923840), (334, 1918080), (360, 1779552), (370, 1731456), (384, 1668330), (405, 1581824), (432, 1482960), (444, 1442880), (480, 1334664), (501, 1278720), (540, 1186368), (555, 1154304), (576, 1112220), (592, 1082160), (640, 1000998), (648, 988640), (666, 961920), (668, 959040), (720, 889776), (740, 865728), (768, 834165), (810, 790912), (835, 767232), (864, 741480), (888, 721440), (960, 667332), (999, 641280), (1002, 639360), (1080, 593184), (1110, 577152), (1152, 556110), (1184, 541080), (1280, 500499), (1296, 494320), (1332, 480960), (1336, 479520), (1440, 444888), (1480, 432864), (1503, 426240), (1620, 395456), (1665, 384768), (1670, 383616), (1728, 370740), (1776, 360720), (1920, 333666), (1998, 320640), (2004, 319680), (2160, 296592), (2220, 288576), (2304, 278055), (2368, 270540), (2505, 255744), (2592, 247160), (2664, 240480), (2672, 239760), (2880, 222444), (2960, 216432), (2997, 213760), (3006, 213120), (3240, 197728), (3330, 192384), (3340, 191808), (3456, 185370), (3552, 180360), (3840, 166833), (3996, 160320), (4008, 159840), (4320, 148296), (4440, 144288), (4509, 142080), (4736, 135270), (4995, 128256), (5010, 127872), (5184, 123580), (5328, 120240), (5344, 119880), (5760, 111222), (5920, 108216), (5994, 106880), (6012, 106560), (6179, 103680), (6480, 98864), (6660, 96192), (6680, 95904), (6912, 92685), (7104, 90180), (7515, 85248), (7992, 80160), (8016, 79920), (8640, 74148), (8880, 72144), (9018, 71040), (9472, 67635), (9990, 64128), (10020, 63936), (10368, 61790), (10656, 60120), (10688, 59940), (11520, 55611), (11840, 54108), (11988, 53440), (12024, 53280), (12358, 51840), (12960, 49432), (13320, 48096), (13360, 47952), (13527, 47360), (14208, 45090), (14985, 42752), (15030, 42624), (15984, 40080), (16032, 39960), (17280, 37074), (17760, 36072), (18036, 35520), (18537, 34560), (19980, 32064), (20040, 31968), (20736, 30895), (21312, 30060), (21376, 29970), (22545, 28416), (23680, 27054), (23976, 26720), (24048, 26640), (24716, 25920)]