257066880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:677

約数の個数: 256

約数和(自身を含む): 968232960

約数和(自身を除く): 711166080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 128, 140, 155, 160, 168, 186, 192, 210, 217, 224, 240, 248, 280, 310, 320, 336, 372, 384, 420, 434, 448, 465, 480, 496, 560, 617, 620, 640, 651, 672, 744, 840, 868, 896, 930, 960, 992, 1085, 1120, 1234, 1240, 1302, 1344, 1488, 1680, 1736, 1851, 1860, 1920, 1984, 2170, 2240, 2468, 2480, 2604, 2688, 2976, 3085, 3255, 3360, 3472, 3702, 3720, 3968, 4319, 4340, 4480, 4936, 4960, 5208, 5952, 6170, 6510, 6720, 6944, 7404, 7440, 8638, 8680, 9255, 9872, 9920, 10416, 11904, 12340, 12957, 13020, 13440, 13888, 14808, 14880, 17276, 17360, 18510, 19127, 19744, 19840, 20832, 21595, 24680, 25914, 26040, 27776, 29616, 29760, 34552, 34720, 37020, 38254, 39488, 41664, 43190, 49360, 51828, 52080, 57381, 59232, 59520, 64785, 69104, 69440, 74040, 76508, 78976, 83328, 86380, 95635, 98720, 103656, 104160, 114762, 118464, 129570, 133889, 138208, 138880, 148080, 153016, 172760, 191270, 197440, 207312, 208320, 229524, 236928, 259140, 267778, 276416, 286905, 296160, 306032, 345520, 382540, 394880, 401667, 414624, 416640, 459048, 518280, 535556, 552832, 573810, 592320, 612064, 669445, 691040, 765080, 803334, 829248, 918096, 1036560, 1071112, 1147620, 1184640, 1224128, 1338890, 1382080, 1530160, 1606668, 1658496, 1836192, 2008335, 2073120, 2142224, 2295240, 2448256, 2677780, 2764160, 3060320, 3213336, 3672384, 4016670, 4146240, 4284448, 4590480, 5355560, 6120640, 6426672, 7344768, 8033340, 8292480, 8568896, 9180960, 10711120, 12241280, 12853344, 16066680, 17137792, 18361920, 21422240, 25706688, 32133360, 36723840, 42844480, 51413376, 64266720, 85688960, 128533440, 257066880]

約数ペア:

[(1, 257066880), (2, 128533440), (3, 85688960), (4, 64266720), (5, 51413376), (6, 42844480), (7, 36723840), (8, 32133360), (10, 25706688), (12, 21422240), (14, 18361920), (15, 17137792), (16, 16066680), (20, 12853344), (21, 12241280), (24, 10711120), (28, 9180960), (30, 8568896), (31, 8292480), (32, 8033340), (35, 7344768), (40, 6426672), (42, 6120640), (48, 5355560), (56, 4590480), (60, 4284448), (62, 4146240), (64, 4016670), (70, 3672384), (80, 3213336), (84, 3060320), (93, 2764160), (96, 2677780), (105, 2448256), (112, 2295240), (120, 2142224), (124, 2073120), (128, 2008335), (140, 1836192), (155, 1658496), (160, 1606668), (168, 1530160), (186, 1382080), (192, 1338890), (210, 1224128), (217, 1184640), (224, 1147620), (240, 1071112), (248, 1036560), (280, 918096), (310, 829248), (320, 803334), (336, 765080), (372, 691040), (384, 669445), (420, 612064), (434, 592320), (448, 573810), (465, 552832), (480, 535556), (496, 518280), (560, 459048), (617, 416640), (620, 414624), (640, 401667), (651, 394880), (672, 382540), (744, 345520), (840, 306032), (868, 296160), (896, 286905), (930, 276416), (960, 267778), (992, 259140), (1085, 236928), (1120, 229524), (1234, 208320), (1240, 207312), (1302, 197440), (1344, 191270), (1488, 172760), (1680, 153016), (1736, 148080), (1851, 138880), (1860, 138208), (1920, 133889), (1984, 129570), (2170, 118464), (2240, 114762), (2468, 104160), (2480, 103656), (2604, 98720), (2688, 95635), (2976, 86380), (3085, 83328), (3255, 78976), (3360, 76508), (3472, 74040), (3702, 69440), (3720, 69104), (3968, 64785), (4319, 59520), (4340, 59232), (4480, 57381), (4936, 52080), (4960, 51828), (5208, 49360), (5952, 43190), (6170, 41664), (6510, 39488), (6720, 38254), (6944, 37020), (7404, 34720), (7440, 34552), (8638, 29760), (8680, 29616), (9255, 27776), (9872, 26040), (9920, 25914), (10416, 24680), (11904, 21595), (12340, 20832), (12957, 19840), (13020, 19744), (13440, 19127), (13888, 18510), (14808, 17360), (14880, 17276)]