1991744640

素因数分解:

$2^7\times 3^7\times 5^1\times {\mathrm{1423}}^1$

素因数の和:1463

約数の個数: 256

約数和(自身を含む): 7146201600

約数和(自身を除く): 5154456960

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, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 729, 810, 864, 960, 972, 1080, 1152, 1215, 1296, 1423, 1440, 1458, 1620, 1728, 1920, 1944, 2160, 2187, 2430, 2592, 2846, 2880, 2916, 3240, 3456, 3645, 3888, 4269, 4320, 4374, 4860, 5184, 5692, 5760, 5832, 6480, 7115, 7290, 7776, 8538, 8640, 8748, 9720, 10368, 10935, 11384, 11664, 12807, 12960, 14230, 14580, 15552, 17076, 17280, 17496, 19440, 21345, 21870, 22768, 23328, 25614, 25920, 28460, 29160, 31104, 34152, 34992, 38421, 38880, 42690, 43740, 45536, 46656, 51228, 51840, 56920, 58320, 64035, 68304, 69984, 76842, 77760, 85380, 87480, 91072, 93312, 102456, 113840, 115263, 116640, 128070, 136608, 139968, 153684, 155520, 170760, 174960, 182144, 192105, 204912, 227680, 230526, 233280, 256140, 273216, 279936, 307368, 341520, 345789, 349920, 384210, 409824, 455360, 461052, 466560, 512280, 546432, 576315, 614736, 683040, 691578, 699840, 768420, 819648, 910720, 922104, 1024560, 1037367, 1152630, 1229472, 1366080, 1383156, 1399680, 1536840, 1639296, 1728945, 1844208, 2049120, 2074734, 2305260, 2458944, 2732160, 2766312, 3073680, 3112101, 3457890, 3688416, 4098240, 4149468, 4610520, 4917888, 5186835, 5532624, 6147360, 6224202, 6915780, 7376832, 8196480, 8298936, 9221040, 10373670, 11065248, 12294720, 12448404, 13831560, 14753664, 15560505, 16597872, 18442080, 20747340, 22130496, 24589440, 24896808, 27663120, 31121010, 33195744, 36884160, 41494680, 44260992, 49793616, 55326240, 62242020, 66391488, 73768320, 82989360, 99587232, 110652480, 124484040, 132782976, 165978720, 199174464, 221304960, 248968080, 331957440, 398348928, 497936160, 663914880, 995872320, 1991744640]

約数ペア:

[(1, 1991744640), (2, 995872320), (3, 663914880), (4, 497936160), (5, 398348928), (6, 331957440), (8, 248968080), (9, 221304960), (10, 199174464), (12, 165978720), (15, 132782976), (16, 124484040), (18, 110652480), (20, 99587232), (24, 82989360), (27, 73768320), (30, 66391488), (32, 62242020), (36, 55326240), (40, 49793616), (45, 44260992), (48, 41494680), (54, 36884160), (60, 33195744), (64, 31121010), (72, 27663120), (80, 24896808), (81, 24589440), (90, 22130496), (96, 20747340), (108, 18442080), (120, 16597872), (128, 15560505), (135, 14753664), (144, 13831560), (160, 12448404), (162, 12294720), (180, 11065248), (192, 10373670), (216, 9221040), (240, 8298936), (243, 8196480), (270, 7376832), (288, 6915780), (320, 6224202), (324, 6147360), (360, 5532624), (384, 5186835), (405, 4917888), (432, 4610520), (480, 4149468), (486, 4098240), (540, 3688416), (576, 3457890), (640, 3112101), (648, 3073680), (720, 2766312), (729, 2732160), (810, 2458944), (864, 2305260), (960, 2074734), (972, 2049120), (1080, 1844208), (1152, 1728945), (1215, 1639296), (1296, 1536840), (1423, 1399680), (1440, 1383156), (1458, 1366080), (1620, 1229472), (1728, 1152630), (1920, 1037367), (1944, 1024560), (2160, 922104), (2187, 910720), (2430, 819648), (2592, 768420), (2846, 699840), (2880, 691578), (2916, 683040), (3240, 614736), (3456, 576315), (3645, 546432), (3888, 512280), (4269, 466560), (4320, 461052), (4374, 455360), (4860, 409824), (5184, 384210), (5692, 349920), (5760, 345789), (5832, 341520), (6480, 307368), (7115, 279936), (7290, 273216), (7776, 256140), (8538, 233280), (8640, 230526), (8748, 227680), (9720, 204912), (10368, 192105), (10935, 182144), (11384, 174960), (11664, 170760), (12807, 155520), (12960, 153684), (14230, 139968), (14580, 136608), (15552, 128070), (17076, 116640), (17280, 115263), (17496, 113840), (19440, 102456), (21345, 93312), (21870, 91072), (22768, 87480), (23328, 85380), (25614, 77760), (25920, 76842), (28460, 69984), (29160, 68304), (31104, 64035), (34152, 58320), (34992, 56920), (38421, 51840), (38880, 51228), (42690, 46656), (43740, 45536)]