128384640

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:775

約数の個数: 192

約数和(自身を含む): 458265600

約数和(自身を除く): 329880960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 240, 248, 279, 288, 310, 320, 360, 372, 384, 465, 480, 496, 558, 576, 620, 640, 719, 720, 744, 930, 960, 992, 1116, 1152, 1240, 1395, 1438, 1440, 1488, 1860, 1920, 1984, 2157, 2232, 2480, 2790, 2876, 2880, 2976, 3595, 3720, 3968, 4314, 4464, 4960, 5580, 5752, 5760, 5952, 6471, 7190, 7440, 8628, 8928, 9920, 10785, 11160, 11504, 11904, 12942, 14380, 14880, 17256, 17856, 19840, 21570, 22289, 22320, 23008, 25884, 28760, 29760, 32355, 34512, 35712, 43140, 44578, 44640, 46016, 51768, 57520, 59520, 64710, 66867, 69024, 86280, 89156, 89280, 92032, 103536, 111445, 115040, 129420, 133734, 138048, 172560, 178312, 178560, 200601, 207072, 222890, 230080, 258840, 267468, 276096, 334335, 345120, 356624, 401202, 414144, 445780, 460160, 517680, 534936, 668670, 690240, 713248, 802404, 828288, 891560, 1003005, 1035360, 1069872, 1337340, 1380480, 1426496, 1604808, 1783120, 2006010, 2070720, 2139744, 2674680, 2852992, 3209616, 3566240, 4012020, 4141440, 4279488, 5349360, 6419232, 7132480, 8024040, 8558976, 10698720, 12838464, 14264960, 16048080, 21397440, 25676928, 32096160, 42794880, 64192320, 128384640]

約数ペア:

[(1, 128384640), (2, 64192320), (3, 42794880), (4, 32096160), (5, 25676928), (6, 21397440), (8, 16048080), (9, 14264960), (10, 12838464), (12, 10698720), (15, 8558976), (16, 8024040), (18, 7132480), (20, 6419232), (24, 5349360), (30, 4279488), (31, 4141440), (32, 4012020), (36, 3566240), (40, 3209616), (45, 2852992), (48, 2674680), (60, 2139744), (62, 2070720), (64, 2006010), (72, 1783120), (80, 1604808), (90, 1426496), (93, 1380480), (96, 1337340), (120, 1069872), (124, 1035360), (128, 1003005), (144, 891560), (155, 828288), (160, 802404), (180, 713248), (186, 690240), (192, 668670), (240, 534936), (248, 517680), (279, 460160), (288, 445780), (310, 414144), (320, 401202), (360, 356624), (372, 345120), (384, 334335), (465, 276096), (480, 267468), (496, 258840), (558, 230080), (576, 222890), (620, 207072), (640, 200601), (719, 178560), (720, 178312), (744, 172560), (930, 138048), (960, 133734), (992, 129420), (1116, 115040), (1152, 111445), (1240, 103536), (1395, 92032), (1438, 89280), (1440, 89156), (1488, 86280), (1860, 69024), (1920, 66867), (1984, 64710), (2157, 59520), (2232, 57520), (2480, 51768), (2790, 46016), (2876, 44640), (2880, 44578), (2976, 43140), (3595, 35712), (3720, 34512), (3968, 32355), (4314, 29760), (4464, 28760), (4960, 25884), (5580, 23008), (5752, 22320), (5760, 22289), (5952, 21570), (6471, 19840), (7190, 17856), (7440, 17256), (8628, 14880), (8928, 14380), (9920, 12942), (10785, 11904), (11160, 11504)]