28811520

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 216

約数和(自身を含む): 103790232

約数和(自身を除く): 74978712

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 61, 64, 72, 80, 82, 90, 96, 120, 122, 123, 128, 144, 160, 164, 180, 183, 192, 205, 240, 244, 246, 256, 288, 305, 320, 328, 360, 366, 369, 384, 410, 480, 488, 492, 549, 576, 610, 615, 640, 656, 720, 732, 738, 768, 820, 915, 960, 976, 984, 1098, 1152, 1220, 1230, 1280, 1312, 1440, 1464, 1476, 1640, 1830, 1845, 1920, 1952, 1968, 2196, 2304, 2440, 2460, 2501, 2624, 2745, 2880, 2928, 2952, 3280, 3660, 3690, 3840, 3904, 3936, 4392, 4880, 4920, 5002, 5248, 5490, 5760, 5856, 5904, 6560, 7320, 7380, 7503, 7808, 7872, 8784, 9760, 9840, 10004, 10496, 10980, 11520, 11712, 11808, 12505, 13120, 14640, 14760, 15006, 15616, 15744, 17568, 19520, 19680, 20008, 21960, 22509, 23424, 23616, 25010, 26240, 29280, 29520, 30012, 31488, 35136, 37515, 39040, 39360, 40016, 43920, 45018, 46848, 47232, 50020, 52480, 58560, 59040, 60024, 70272, 75030, 78080, 78720, 80032, 87840, 90036, 94464, 100040, 112545, 117120, 118080, 120048, 140544, 150060, 157440, 160064, 175680, 180072, 200080, 225090, 234240, 236160, 240096, 300120, 320128, 351360, 360144, 400160, 450180, 472320, 480192, 600240, 640256, 702720, 720288, 800320, 900360, 960384, 1200480, 1440576, 1600640, 1800720, 1920768, 2400960, 2881152, 3201280, 3601440, 4801920, 5762304, 7202880, 9603840, 14405760, 28811520]

約数ペア:

[(1, 28811520), (2, 14405760), (3, 9603840), (4, 7202880), (5, 5762304), (6, 4801920), (8, 3601440), (9, 3201280), (10, 2881152), (12, 2400960), (15, 1920768), (16, 1800720), (18, 1600640), (20, 1440576), (24, 1200480), (30, 960384), (32, 900360), (36, 800320), (40, 720288), (41, 702720), (45, 640256), (48, 600240), (60, 480192), (61, 472320), (64, 450180), (72, 400160), (80, 360144), (82, 351360), (90, 320128), (96, 300120), (120, 240096), (122, 236160), (123, 234240), (128, 225090), (144, 200080), (160, 180072), (164, 175680), (180, 160064), (183, 157440), (192, 150060), (205, 140544), (240, 120048), (244, 118080), (246, 117120), (256, 112545), (288, 100040), (305, 94464), (320, 90036), (328, 87840), (360, 80032), (366, 78720), (369, 78080), (384, 75030), (410, 70272), (480, 60024), (488, 59040), (492, 58560), (549, 52480), (576, 50020), (610, 47232), (615, 46848), (640, 45018), (656, 43920), (720, 40016), (732, 39360), (738, 39040), (768, 37515), (820, 35136), (915, 31488), (960, 30012), (976, 29520), (984, 29280), (1098, 26240), (1152, 25010), (1220, 23616), (1230, 23424), (1280, 22509), (1312, 21960), (1440, 20008), (1464, 19680), (1476, 19520), (1640, 17568), (1830, 15744), (1845, 15616), (1920, 15006), (1952, 14760), (1968, 14640), (2196, 13120), (2304, 12505), (2440, 11808), (2460, 11712), (2501, 11520), (2624, 10980), (2745, 10496), (2880, 10004), (2928, 9840), (2952, 9760), (3280, 8784), (3660, 7872), (3690, 7808), (3840, 7503), (3904, 7380), (3936, 7320), (4392, 6560), (4880, 5904), (4920, 5856), (5002, 5760), (5248, 5490)]