257823720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:237

約数の個数: 384

約数和(自身を含む): 1067489280

約数和(自身を除く): 809665560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 71, 72, 77, 84, 88, 90, 99, 105, 110, 120, 126, 131, 132, 140, 142, 154, 165, 168, 180, 198, 210, 213, 220, 231, 252, 262, 264, 280, 284, 308, 315, 330, 355, 360, 385, 393, 396, 420, 426, 440, 462, 495, 497, 504, 524, 568, 616, 630, 639, 655, 660, 693, 710, 770, 781, 786, 792, 840, 852, 917, 924, 990, 994, 1048, 1065, 1155, 1179, 1260, 1278, 1310, 1320, 1386, 1420, 1441, 1491, 1540, 1562, 1572, 1704, 1834, 1848, 1965, 1980, 1988, 2130, 2310, 2343, 2358, 2485, 2520, 2556, 2620, 2751, 2772, 2840, 2882, 2982, 3080, 3124, 3144, 3195, 3465, 3668, 3905, 3930, 3960, 3976, 4260, 4323, 4473, 4585, 4620, 4686, 4716, 4970, 5112, 5240, 5467, 5502, 5544, 5764, 5895, 5964, 6248, 6390, 6930, 7029, 7205, 7336, 7455, 7810, 7860, 8253, 8520, 8646, 8946, 9170, 9240, 9301, 9372, 9432, 9940, 10087, 10934, 11004, 11528, 11715, 11790, 11928, 12780, 12969, 13755, 13860, 14058, 14410, 14910, 15620, 15720, 16401, 16506, 17292, 17892, 18340, 18602, 18744, 19880, 20174, 21615, 21868, 22008, 22365, 23430, 23580, 25560, 25938, 27335, 27510, 27720, 27903, 28116, 28820, 29820, 30261, 31240, 32802, 33012, 34584, 35145, 35784, 36680, 37204, 40348, 41265, 43230, 43736, 44730, 46505, 46860, 47160, 49203, 50435, 51876, 54670, 55020, 55806, 56232, 57640, 59640, 60522, 64845, 65107, 65604, 66024, 70290, 74408, 80696, 82005, 82530, 83709, 86460, 89460, 90783, 93010, 93720, 98406, 100870, 102311, 103752, 109340, 110040, 111612, 121044, 129690, 130214, 131208, 139515, 140580, 151305, 164010, 165060, 167418, 172920, 178920, 181566, 186020, 195321, 196812, 201740, 204622, 218680, 223224, 242088, 246015, 259380, 260428, 279030, 281160, 302610, 306933, 325535, 328020, 330120, 334836, 363132, 372040, 390642, 393624, 403480, 409244, 418545, 453915, 492030, 511555, 518760, 520856, 558060, 585963, 605220, 613866, 651070, 656040, 669672, 716177, 726264, 781284, 818488, 837090, 907830, 920799, 976605, 984060, 1023110, 1116120, 1171926, 1210440, 1227732, 1302140, 1432354, 1534665, 1562568, 1674180, 1815660, 1841598, 1953210, 1968120, 2046220, 2148531, 2343852, 2455464, 2604280, 2864708, 2929815, 3069330, 3348360, 3580885, 3631320, 3683196, 3906420, 4092440, 4297062, 4603995, 4687704, 5729416, 5859630, 6138660, 6445593, 7161770, 7366392, 7812840, 8594124, 9207990, 10742655, 11719260, 12277320, 12891186, 14323540, 17188248, 18415980, 21485310, 23438520, 25782372, 28647080, 32227965, 36831960, 42970620, 51564744, 64455930, 85941240, 128911860, 257823720]

約数ペア:

[(1, 257823720), (2, 128911860), (3, 85941240), (4, 64455930), (5, 51564744), (6, 42970620), (7, 36831960), (8, 32227965), (9, 28647080), (10, 25782372), (11, 23438520), (12, 21485310), (14, 18415980), (15, 17188248), (18, 14323540), (20, 12891186), (21, 12277320), (22, 11719260), (24, 10742655), (28, 9207990), (30, 8594124), (33, 7812840), (35, 7366392), (36, 7161770), (40, 6445593), (42, 6138660), (44, 5859630), (45, 5729416), (55, 4687704), (56, 4603995), (60, 4297062), (63, 4092440), (66, 3906420), (70, 3683196), (71, 3631320), (72, 3580885), (77, 3348360), (84, 3069330), (88, 2929815), (90, 2864708), (99, 2604280), (105, 2455464), (110, 2343852), (120, 2148531), (126, 2046220), (131, 1968120), (132, 1953210), (140, 1841598), (142, 1815660), (154, 1674180), (165, 1562568), (168, 1534665), (180, 1432354), (198, 1302140), (210, 1227732), (213, 1210440), (220, 1171926), (231, 1116120), (252, 1023110), (262, 984060), (264, 976605), (280, 920799), (284, 907830), (308, 837090), (315, 818488), (330, 781284), (355, 726264), (360, 716177), (385, 669672), (393, 656040), (396, 651070), (420, 613866), (426, 605220), (440, 585963), (462, 558060), (495, 520856), (497, 518760), (504, 511555), (524, 492030), (568, 453915), (616, 418545), (630, 409244), (639, 403480), (655, 393624), (660, 390642), (693, 372040), (710, 363132), (770, 334836), (781, 330120), (786, 328020), (792, 325535), (840, 306933), (852, 302610), (917, 281160), (924, 279030), (990, 260428), (994, 259380), (1048, 246015), (1065, 242088), (1155, 223224), (1179, 218680), (1260, 204622), (1278, 201740), (1310, 196812), (1320, 195321), (1386, 186020), (1420, 181566), (1441, 178920), (1491, 172920), (1540, 167418), (1562, 165060), (1572, 164010), (1704, 151305), (1834, 140580), (1848, 139515), (1965, 131208), (1980, 130214), (1988, 129690), (2130, 121044), (2310, 111612), (2343, 110040), (2358, 109340), (2485, 103752), (2520, 102311), (2556, 100870), (2620, 98406), (2751, 93720), (2772, 93010), (2840, 90783), (2882, 89460), (2982, 86460), (3080, 83709), (3124, 82530), (3144, 82005), (3195, 80696), (3465, 74408), (3668, 70290), (3905, 66024), (3930, 65604), (3960, 65107), (3976, 64845), (4260, 60522), (4323, 59640), (4473, 57640), (4585, 56232), (4620, 55806), (4686, 55020), (4716, 54670), (4970, 51876), (5112, 50435), (5240, 49203), (5467, 47160), (5502, 46860), (5544, 46505), (5764, 44730), (5895, 43736), (5964, 43230), (6248, 41265), (6390, 40348), (6930, 37204), (7029, 36680), (7205, 35784), (7336, 35145), (7455, 34584), (7810, 33012), (7860, 32802), (8253, 31240), (8520, 30261), (8646, 29820), (8946, 28820), (9170, 28116), (9240, 27903), (9301, 27720), (9372, 27510), (9432, 27335), (9940, 25938), (10087, 25560), (10934, 23580), (11004, 23430), (11528, 22365), (11715, 22008), (11790, 21868), (11928, 21615), (12780, 20174), (12969, 19880), (13755, 18744), (13860, 18602), (14058, 18340), (14410, 17892), (14910, 17292), (15620, 16506), (15720, 16401)]