81723840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 224

約数和(自身を含む): 289681920

約数和(自身を除く): 207958080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 71, 80, 88, 96, 109, 110, 120, 132, 142, 160, 165, 176, 192, 213, 218, 220, 240, 264, 284, 320, 327, 330, 352, 355, 426, 436, 440, 480, 528, 545, 568, 654, 660, 704, 710, 781, 852, 872, 880, 960, 1056, 1065, 1090, 1136, 1199, 1308, 1320, 1420, 1562, 1635, 1704, 1744, 1760, 2112, 2130, 2180, 2272, 2343, 2398, 2616, 2640, 2840, 3124, 3270, 3408, 3488, 3520, 3597, 3905, 4260, 4360, 4544, 4686, 4796, 5232, 5280, 5680, 5995, 6248, 6540, 6816, 6976, 7194, 7739, 7810, 8520, 8720, 9372, 9592, 10464, 10560, 11360, 11715, 11990, 12496, 13080, 13632, 14388, 15478, 15620, 17040, 17440, 17985, 18744, 19184, 20928, 22720, 23217, 23430, 23980, 24992, 26160, 28776, 30956, 31240, 34080, 34880, 35970, 37488, 38368, 38695, 46434, 46860, 47960, 49984, 52320, 57552, 61912, 62480, 68160, 71940, 74976, 76736, 77390, 85129, 92868, 93720, 95920, 104640, 115104, 116085, 123824, 124960, 143880, 149952, 154780, 170258, 185736, 187440, 191840, 230208, 232170, 247648, 249920, 255387, 287760, 309560, 340516, 371472, 374880, 383680, 425645, 464340, 495296, 510774, 575520, 619120, 681032, 742944, 749760, 851290, 928680, 1021548, 1151040, 1238240, 1276935, 1362064, 1485888, 1702580, 1857360, 2043096, 2476480, 2553870, 2724128, 3405160, 3714720, 4086192, 5107740, 5448256, 6810320, 7429440, 8172384, 10215480, 13620640, 16344768, 20430960, 27241280, 40861920, 81723840]

約数ペア:

[(1, 81723840), (2, 40861920), (3, 27241280), (4, 20430960), (5, 16344768), (6, 13620640), (8, 10215480), (10, 8172384), (11, 7429440), (12, 6810320), (15, 5448256), (16, 5107740), (20, 4086192), (22, 3714720), (24, 3405160), (30, 2724128), (32, 2553870), (33, 2476480), (40, 2043096), (44, 1857360), (48, 1702580), (55, 1485888), (60, 1362064), (64, 1276935), (66, 1238240), (71, 1151040), (80, 1021548), (88, 928680), (96, 851290), (109, 749760), (110, 742944), (120, 681032), (132, 619120), (142, 575520), (160, 510774), (165, 495296), (176, 464340), (192, 425645), (213, 383680), (218, 374880), (220, 371472), (240, 340516), (264, 309560), (284, 287760), (320, 255387), (327, 249920), (330, 247648), (352, 232170), (355, 230208), (426, 191840), (436, 187440), (440, 185736), (480, 170258), (528, 154780), (545, 149952), (568, 143880), (654, 124960), (660, 123824), (704, 116085), (710, 115104), (781, 104640), (852, 95920), (872, 93720), (880, 92868), (960, 85129), (1056, 77390), (1065, 76736), (1090, 74976), (1136, 71940), (1199, 68160), (1308, 62480), (1320, 61912), (1420, 57552), (1562, 52320), (1635, 49984), (1704, 47960), (1744, 46860), (1760, 46434), (2112, 38695), (2130, 38368), (2180, 37488), (2272, 35970), (2343, 34880), (2398, 34080), (2616, 31240), (2640, 30956), (2840, 28776), (3124, 26160), (3270, 24992), (3408, 23980), (3488, 23430), (3520, 23217), (3597, 22720), (3905, 20928), (4260, 19184), (4360, 18744), (4544, 17985), (4686, 17440), (4796, 17040), (5232, 15620), (5280, 15478), (5680, 14388), (5995, 13632), (6248, 13080), (6540, 12496), (6816, 11990), (6976, 11715), (7194, 11360), (7739, 10560), (7810, 10464), (8520, 9592), (8720, 9372)]