20928000

素因数分解:

$2^9\times 3^1\times 5^3\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 160

約数和(自身を含む): 70218720

約数和(自身を除く): 49290720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 109, 120, 125, 128, 150, 160, 192, 200, 218, 240, 250, 256, 300, 320, 327, 375, 384, 400, 436, 480, 500, 512, 545, 600, 640, 654, 750, 768, 800, 872, 960, 1000, 1090, 1200, 1280, 1308, 1500, 1536, 1600, 1635, 1744, 1920, 2000, 2180, 2400, 2560, 2616, 2725, 3000, 3200, 3270, 3488, 3840, 4000, 4360, 4800, 5232, 5450, 6000, 6400, 6540, 6976, 7680, 8000, 8175, 8720, 9600, 10464, 10900, 12000, 12800, 13080, 13625, 13952, 16000, 16350, 17440, 19200, 20928, 21800, 24000, 26160, 27250, 27904, 32000, 32700, 34880, 38400, 40875, 41856, 43600, 48000, 52320, 54500, 55808, 64000, 65400, 69760, 81750, 83712, 87200, 96000, 104640, 109000, 130800, 139520, 163500, 167424, 174400, 192000, 209280, 218000, 261600, 279040, 327000, 348800, 418560, 436000, 523200, 654000, 697600, 837120, 872000, 1046400, 1308000, 1395200, 1744000, 2092800, 2616000, 3488000, 4185600, 5232000, 6976000, 10464000, 20928000]

約数ペア:

[(1, 20928000), (2, 10464000), (3, 6976000), (4, 5232000), (5, 4185600), (6, 3488000), (8, 2616000), (10, 2092800), (12, 1744000), (15, 1395200), (16, 1308000), (20, 1046400), (24, 872000), (25, 837120), (30, 697600), (32, 654000), (40, 523200), (48, 436000), (50, 418560), (60, 348800), (64, 327000), (75, 279040), (80, 261600), (96, 218000), (100, 209280), (109, 192000), (120, 174400), (125, 167424), (128, 163500), (150, 139520), (160, 130800), (192, 109000), (200, 104640), (218, 96000), (240, 87200), (250, 83712), (256, 81750), (300, 69760), (320, 65400), (327, 64000), (375, 55808), (384, 54500), (400, 52320), (436, 48000), (480, 43600), (500, 41856), (512, 40875), (545, 38400), (600, 34880), (640, 32700), (654, 32000), (750, 27904), (768, 27250), (800, 26160), (872, 24000), (960, 21800), (1000, 20928), (1090, 19200), (1200, 17440), (1280, 16350), (1308, 16000), (1500, 13952), (1536, 13625), (1600, 13080), (1635, 12800), (1744, 12000), (1920, 10900), (2000, 10464), (2180, 9600), (2400, 8720), (2560, 8175), (2616, 8000), (2725, 7680), (3000, 6976), (3200, 6540), (3270, 6400), (3488, 6000), (3840, 5450), (4000, 5232), (4360, 4800)]