81665280

素因数分解:

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

素因数の和:186

約数の個数: 288

約数和(自身を含む): 309052800

約数和(自身を除く): 227387520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 128, 135, 136, 139, 144, 153, 160, 170, 180, 192, 204, 216, 240, 255, 256, 270, 272, 278, 288, 306, 320, 340, 360, 384, 408, 417, 432, 459, 480, 510, 540, 544, 556, 576, 612, 640, 680, 695, 720, 765, 768, 816, 834, 864, 918, 960, 1020, 1080, 1088, 1112, 1152, 1224, 1251, 1280, 1360, 1390, 1440, 1530, 1632, 1668, 1728, 1836, 1920, 2040, 2085, 2160, 2176, 2224, 2295, 2304, 2363, 2448, 2502, 2720, 2780, 2880, 3060, 3264, 3336, 3456, 3672, 3753, 3840, 4080, 4170, 4320, 4352, 4448, 4590, 4726, 4896, 5004, 5440, 5560, 5760, 6120, 6255, 6528, 6672, 6912, 7089, 7344, 7506, 8160, 8340, 8640, 8896, 9180, 9452, 9792, 10008, 10880, 11120, 11520, 11815, 12240, 12510, 13056, 13344, 14178, 14688, 15012, 16320, 16680, 17280, 17792, 18360, 18765, 18904, 19584, 20016, 21267, 21760, 22240, 23630, 24480, 25020, 26688, 28356, 29376, 30024, 32640, 33360, 34560, 35445, 35584, 36720, 37530, 37808, 39168, 40032, 42534, 44480, 47260, 48960, 50040, 53376, 56712, 58752, 60048, 63801, 65280, 66720, 70890, 73440, 75060, 75616, 80064, 85068, 88960, 94520, 97920, 100080, 106335, 106752, 113424, 117504, 120096, 127602, 133440, 141780, 146880, 150120, 151232, 160128, 170136, 177920, 189040, 195840, 200160, 212670, 226848, 240192, 255204, 266880, 283560, 293760, 300240, 302464, 319005, 320256, 340272, 378080, 400320, 425340, 453696, 480384, 510408, 533760, 567120, 587520, 600480, 604928, 638010, 680544, 756160, 800640, 850680, 907392, 960768, 1020816, 1134240, 1200960, 1276020, 1361088, 1512320, 1601280, 1701360, 1814784, 2041632, 2268480, 2401920, 2552040, 2722176, 3024640, 3402720, 4083264, 4536960, 4803840, 5104080, 5444352, 6805440, 8166528, 9073920, 10208160, 13610880, 16333056, 20416320, 27221760, 40832640, 81665280]

約数ペア:

[(1, 81665280), (2, 40832640), (3, 27221760), (4, 20416320), (5, 16333056), (6, 13610880), (8, 10208160), (9, 9073920), (10, 8166528), (12, 6805440), (15, 5444352), (16, 5104080), (17, 4803840), (18, 4536960), (20, 4083264), (24, 3402720), (27, 3024640), (30, 2722176), (32, 2552040), (34, 2401920), (36, 2268480), (40, 2041632), (45, 1814784), (48, 1701360), (51, 1601280), (54, 1512320), (60, 1361088), (64, 1276020), (68, 1200960), (72, 1134240), (80, 1020816), (85, 960768), (90, 907392), (96, 850680), (102, 800640), (108, 756160), (120, 680544), (128, 638010), (135, 604928), (136, 600480), (139, 587520), (144, 567120), (153, 533760), (160, 510408), (170, 480384), (180, 453696), (192, 425340), (204, 400320), (216, 378080), (240, 340272), (255, 320256), (256, 319005), (270, 302464), (272, 300240), (278, 293760), (288, 283560), (306, 266880), (320, 255204), (340, 240192), (360, 226848), (384, 212670), (408, 200160), (417, 195840), (432, 189040), (459, 177920), (480, 170136), (510, 160128), (540, 151232), (544, 150120), (556, 146880), (576, 141780), (612, 133440), (640, 127602), (680, 120096), (695, 117504), (720, 113424), (765, 106752), (768, 106335), (816, 100080), (834, 97920), (864, 94520), (918, 88960), (960, 85068), (1020, 80064), (1080, 75616), (1088, 75060), (1112, 73440), (1152, 70890), (1224, 66720), (1251, 65280), (1280, 63801), (1360, 60048), (1390, 58752), (1440, 56712), (1530, 53376), (1632, 50040), (1668, 48960), (1728, 47260), (1836, 44480), (1920, 42534), (2040, 40032), (2085, 39168), (2160, 37808), (2176, 37530), (2224, 36720), (2295, 35584), (2304, 35445), (2363, 34560), (2448, 33360), (2502, 32640), (2720, 30024), (2780, 29376), (2880, 28356), (3060, 26688), (3264, 25020), (3336, 24480), (3456, 23630), (3672, 22240), (3753, 21760), (3840, 21267), (4080, 20016), (4170, 19584), (4320, 18904), (4352, 18765), (4448, 18360), (4590, 17792), (4726, 17280), (4896, 16680), (5004, 16320), (5440, 15012), (5560, 14688), (5760, 14178), (6120, 13344), (6255, 13056), (6528, 12510), (6672, 12240), (6912, 11815), (7089, 11520), (7344, 11120), (7506, 10880), (8160, 10008), (8340, 9792), (8640, 9452), (8896, 9180)]