128643840

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1$

素因数の和:899

約数の個数: 216

約数和(自身を含む): 479890320

約数和(自身を除く): 351246480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 468, 480, 520, 576, 585, 624, 640, 720, 768, 780, 832, 859, 936, 960, 1040, 1152, 1170, 1248, 1280, 1440, 1560, 1664, 1718, 1872, 1920, 2080, 2304, 2340, 2496, 2577, 2880, 3120, 3328, 3436, 3744, 3840, 4160, 4295, 4680, 4992, 5154, 5760, 6240, 6872, 7488, 7731, 8320, 8590, 9360, 9984, 10308, 11167, 11520, 12480, 12885, 13744, 14976, 15462, 16640, 17180, 18720, 20616, 22334, 24960, 25770, 27488, 29952, 30924, 33501, 34360, 37440, 38655, 41232, 44668, 49920, 51540, 54976, 55835, 61848, 67002, 68720, 74880, 77310, 82464, 89336, 100503, 103080, 109952, 111670, 123696, 134004, 137440, 149760, 154620, 164928, 167505, 178672, 201006, 206160, 219904, 223340, 247392, 268008, 274880, 309240, 329856, 335010, 357344, 402012, 412320, 446680, 494784, 502515, 536016, 549760, 618480, 659712, 670020, 714688, 804024, 824640, 893360, 989568, 1005030, 1072032, 1099520, 1236960, 1340040, 1429376, 1608048, 1649280, 1786720, 1979136, 2010060, 2144064, 2473920, 2680080, 2858752, 3216096, 3298560, 3573440, 4020120, 4288128, 4947840, 5360160, 6432192, 7146880, 8040240, 8576256, 9895680, 10720320, 12864384, 14293760, 16080480, 21440640, 25728768, 32160960, 42881280, 64321920, 128643840]

約数ペア:

[(1, 128643840), (2, 64321920), (3, 42881280), (4, 32160960), (5, 25728768), (6, 21440640), (8, 16080480), (9, 14293760), (10, 12864384), (12, 10720320), (13, 9895680), (15, 8576256), (16, 8040240), (18, 7146880), (20, 6432192), (24, 5360160), (26, 4947840), (30, 4288128), (32, 4020120), (36, 3573440), (39, 3298560), (40, 3216096), (45, 2858752), (48, 2680080), (52, 2473920), (60, 2144064), (64, 2010060), (65, 1979136), (72, 1786720), (78, 1649280), (80, 1608048), (90, 1429376), (96, 1340040), (104, 1236960), (117, 1099520), (120, 1072032), (128, 1005030), (130, 989568), (144, 893360), (156, 824640), (160, 804024), (180, 714688), (192, 670020), (195, 659712), (208, 618480), (234, 549760), (240, 536016), (256, 502515), (260, 494784), (288, 446680), (312, 412320), (320, 402012), (360, 357344), (384, 335010), (390, 329856), (416, 309240), (468, 274880), (480, 268008), (520, 247392), (576, 223340), (585, 219904), (624, 206160), (640, 201006), (720, 178672), (768, 167505), (780, 164928), (832, 154620), (859, 149760), (936, 137440), (960, 134004), (1040, 123696), (1152, 111670), (1170, 109952), (1248, 103080), (1280, 100503), (1440, 89336), (1560, 82464), (1664, 77310), (1718, 74880), (1872, 68720), (1920, 67002), (2080, 61848), (2304, 55835), (2340, 54976), (2496, 51540), (2577, 49920), (2880, 44668), (3120, 41232), (3328, 38655), (3436, 37440), (3744, 34360), (3840, 33501), (4160, 30924), (4295, 29952), (4680, 27488), (4992, 25770), (5154, 24960), (5760, 22334), (6240, 20616), (6872, 18720), (7488, 17180), (7731, 16640), (8320, 15462), (8590, 14976), (9360, 13744), (9984, 12885), (10308, 12480), (11167, 11520)]