281291520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 288

約数和(自身を含む): 988968960

約数和(自身を除く): 707677440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 32, 34, 40, 48, 51, 60, 62, 64, 68, 80, 85, 93, 96, 102, 120, 124, 128, 136, 139, 155, 160, 170, 186, 192, 204, 240, 248, 255, 256, 272, 278, 310, 320, 340, 372, 384, 408, 417, 465, 480, 496, 510, 527, 544, 556, 620, 640, 680, 695, 744, 768, 816, 834, 930, 960, 992, 1020, 1054, 1088, 1112, 1240, 1280, 1360, 1390, 1488, 1581, 1632, 1668, 1860, 1920, 1984, 2040, 2085, 2108, 2176, 2224, 2363, 2480, 2635, 2720, 2780, 2976, 3162, 3264, 3336, 3720, 3840, 3968, 4080, 4170, 4216, 4309, 4352, 4448, 4726, 4960, 5270, 5440, 5560, 5952, 6324, 6528, 6672, 7089, 7440, 7905, 7936, 8160, 8340, 8432, 8618, 8896, 9452, 9920, 10540, 10880, 11120, 11815, 11904, 12648, 12927, 13056, 13344, 14178, 14880, 15810, 16320, 16680, 16864, 17236, 17792, 18904, 19840, 21080, 21545, 21760, 22240, 23630, 23808, 25296, 25854, 26688, 28356, 29760, 31620, 32640, 33360, 33728, 34472, 35445, 35584, 37808, 39680, 42160, 43090, 44480, 47260, 50592, 51708, 53376, 56712, 59520, 63240, 64635, 65280, 66720, 67456, 68944, 70890, 73253, 75616, 84320, 86180, 88960, 94520, 101184, 103416, 106752, 113424, 119040, 126480, 129270, 133440, 134912, 137888, 141780, 146506, 151232, 168640, 172360, 177920, 189040, 202368, 206832, 219759, 226848, 252960, 258540, 266880, 275776, 283560, 293012, 302464, 337280, 344720, 366265, 378080, 404736, 413664, 439518, 453696, 505920, 517080, 533760, 551552, 567120, 586024, 604928, 674560, 689440, 732530, 756160, 827328, 879036, 907392, 1011840, 1034160, 1098795, 1103104, 1134240, 1172048, 1378880, 1465060, 1512320, 1654656, 1758072, 1814784, 2023680, 2068320, 2197590, 2268480, 2344096, 2757760, 2930120, 3024640, 3309312, 3516144, 4136640, 4395180, 4536960, 4688192, 5515520, 5860240, 7032288, 8273280, 8790360, 9073920, 9376384, 11720480, 14064576, 16546560, 17580720, 18752768, 23440960, 28129152, 35161440, 46881920, 56258304, 70322880, 93763840, 140645760, 281291520]

約数ペア:

[(1, 281291520), (2, 140645760), (3, 93763840), (4, 70322880), (5, 56258304), (6, 46881920), (8, 35161440), (10, 28129152), (12, 23440960), (15, 18752768), (16, 17580720), (17, 16546560), (20, 14064576), (24, 11720480), (30, 9376384), (31, 9073920), (32, 8790360), (34, 8273280), (40, 7032288), (48, 5860240), (51, 5515520), (60, 4688192), (62, 4536960), (64, 4395180), (68, 4136640), (80, 3516144), (85, 3309312), (93, 3024640), (96, 2930120), (102, 2757760), (120, 2344096), (124, 2268480), (128, 2197590), (136, 2068320), (139, 2023680), (155, 1814784), (160, 1758072), (170, 1654656), (186, 1512320), (192, 1465060), (204, 1378880), (240, 1172048), (248, 1134240), (255, 1103104), (256, 1098795), (272, 1034160), (278, 1011840), (310, 907392), (320, 879036), (340, 827328), (372, 756160), (384, 732530), (408, 689440), (417, 674560), (465, 604928), (480, 586024), (496, 567120), (510, 551552), (527, 533760), (544, 517080), (556, 505920), (620, 453696), (640, 439518), (680, 413664), (695, 404736), (744, 378080), (768, 366265), (816, 344720), (834, 337280), (930, 302464), (960, 293012), (992, 283560), (1020, 275776), (1054, 266880), (1088, 258540), (1112, 252960), (1240, 226848), (1280, 219759), (1360, 206832), (1390, 202368), (1488, 189040), (1581, 177920), (1632, 172360), (1668, 168640), (1860, 151232), (1920, 146506), (1984, 141780), (2040, 137888), (2085, 134912), (2108, 133440), (2176, 129270), (2224, 126480), (2363, 119040), (2480, 113424), (2635, 106752), (2720, 103416), (2780, 101184), (2976, 94520), (3162, 88960), (3264, 86180), (3336, 84320), (3720, 75616), (3840, 73253), (3968, 70890), (4080, 68944), (4170, 67456), (4216, 66720), (4309, 65280), (4352, 64635), (4448, 63240), (4726, 59520), (4960, 56712), (5270, 53376), (5440, 51708), (5560, 50592), (5952, 47260), (6324, 44480), (6528, 43090), (6672, 42160), (7089, 39680), (7440, 37808), (7905, 35584), (7936, 35445), (8160, 34472), (8340, 33728), (8432, 33360), (8618, 32640), (8896, 31620), (9452, 29760), (9920, 28356), (10540, 26688), (10880, 25854), (11120, 25296), (11815, 23808), (11904, 23630), (12648, 22240), (12927, 21760), (13056, 21545), (13344, 21080), (14178, 19840), (14880, 18904), (15810, 17792), (16320, 17236), (16680, 16864)]