54880000

素因数分解:

$2^8\times 5^4\times 7^3$

素因数の和:57

約数の個数: 180

約数和(自身を含む): 159636400

約数和(自身を除く): 104756400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 125, 128, 140, 160, 175, 196, 200, 224, 245, 250, 256, 280, 320, 343, 350, 392, 400, 448, 490, 500, 560, 625, 640, 686, 700, 784, 800, 875, 896, 980, 1000, 1120, 1225, 1250, 1280, 1372, 1400, 1568, 1600, 1715, 1750, 1792, 1960, 2000, 2240, 2450, 2500, 2744, 2800, 3136, 3200, 3430, 3500, 3920, 4000, 4375, 4480, 4900, 5000, 5488, 5600, 6125, 6272, 6400, 6860, 7000, 7840, 8000, 8575, 8750, 8960, 9800, 10000, 10976, 11200, 12250, 12544, 13720, 14000, 15680, 16000, 17150, 17500, 19600, 20000, 21952, 22400, 24500, 27440, 28000, 30625, 31360, 32000, 34300, 35000, 39200, 40000, 42875, 43904, 44800, 49000, 54880, 56000, 61250, 62720, 68600, 70000, 78400, 80000, 85750, 87808, 98000, 109760, 112000, 122500, 137200, 140000, 156800, 160000, 171500, 196000, 214375, 219520, 224000, 245000, 274400, 280000, 313600, 343000, 392000, 428750, 439040, 490000, 548800, 560000, 686000, 784000, 857500, 980000, 1097600, 1120000, 1372000, 1568000, 1715000, 1960000, 2195200, 2744000, 3430000, 3920000, 5488000, 6860000, 7840000, 10976000, 13720000, 27440000, 54880000]

約数ペア:

[(1, 54880000), (2, 27440000), (4, 13720000), (5, 10976000), (7, 7840000), (8, 6860000), (10, 5488000), (14, 3920000), (16, 3430000), (20, 2744000), (25, 2195200), (28, 1960000), (32, 1715000), (35, 1568000), (40, 1372000), (49, 1120000), (50, 1097600), (56, 980000), (64, 857500), (70, 784000), (80, 686000), (98, 560000), (100, 548800), (112, 490000), (125, 439040), (128, 428750), (140, 392000), (160, 343000), (175, 313600), (196, 280000), (200, 274400), (224, 245000), (245, 224000), (250, 219520), (256, 214375), (280, 196000), (320, 171500), (343, 160000), (350, 156800), (392, 140000), (400, 137200), (448, 122500), (490, 112000), (500, 109760), (560, 98000), (625, 87808), (640, 85750), (686, 80000), (700, 78400), (784, 70000), (800, 68600), (875, 62720), (896, 61250), (980, 56000), (1000, 54880), (1120, 49000), (1225, 44800), (1250, 43904), (1280, 42875), (1372, 40000), (1400, 39200), (1568, 35000), (1600, 34300), (1715, 32000), (1750, 31360), (1792, 30625), (1960, 28000), (2000, 27440), (2240, 24500), (2450, 22400), (2500, 21952), (2744, 20000), (2800, 19600), (3136, 17500), (3200, 17150), (3430, 16000), (3500, 15680), (3920, 14000), (4000, 13720), (4375, 12544), (4480, 12250), (4900, 11200), (5000, 10976), (5488, 10000), (5600, 9800), (6125, 8960), (6272, 8750), (6400, 8575), (6860, 8000), (7000, 7840)]