219998720

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4523}}^1$

素因数の和:4565

約数の個数: 80

約数和(自身を含む): 555366240

約数和(自身を除く): 335367520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 2432, 2560, 3040, 4523, 4864, 6080, 9046, 9728, 12160, 18092, 22615, 24320, 36184, 45230, 48640, 72368, 85937, 90460, 144736, 171874, 180920, 289472, 343748, 361840, 429685, 578944, 687496, 723680, 859370, 1157888, 1374992, 1447360, 1718740, 2315776, 2749984, 2894720, 3437480, 5499968, 5789440, 6874960, 10999936, 11578880, 13749920, 21999872, 27499840, 43999744, 54999680, 109999360, 219998720]

約数ペア:

[(1, 219998720), (2, 109999360), (4, 54999680), (5, 43999744), (8, 27499840), (10, 21999872), (16, 13749920), (19, 11578880), (20, 10999936), (32, 6874960), (38, 5789440), (40, 5499968), (64, 3437480), (76, 2894720), (80, 2749984), (95, 2315776), (128, 1718740), (152, 1447360), (160, 1374992), (190, 1157888), (256, 859370), (304, 723680), (320, 687496), (380, 578944), (512, 429685), (608, 361840), (640, 343748), (760, 289472), (1216, 180920), (1280, 171874), (1520, 144736), (2432, 90460), (2560, 85937), (3040, 72368), (4523, 48640), (4864, 45230), (6080, 36184), (9046, 24320), (9728, 22615), (12160, 18092)]