27440000

素因数分解:

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

素因数の和:55

約数の個数: 160

約数和(自身を含む): 79662000

約数和(自身を除く): 52222000

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, 280, 320, 343, 350, 392, 400, 448, 490, 500, 560, 625, 640, 686, 700, 784, 800, 875, 896, 980, 1000, 1120, 1225, 1250, 1372, 1400, 1568, 1600, 1715, 1750, 1960, 2000, 2240, 2450, 2500, 2744, 2800, 3136, 3200, 3430, 3500, 3920, 4000, 4375, 4480, 4900, 5000, 5488, 5600, 6125, 6272, 6860, 7000, 7840, 8000, 8575, 8750, 9800, 10000, 10976, 11200, 12250, 13720, 14000, 15680, 16000, 17150, 17500, 19600, 20000, 21952, 22400, 24500, 27440, 28000, 30625, 31360, 34300, 35000, 39200, 40000, 42875, 43904, 49000, 54880, 56000, 61250, 68600, 70000, 78400, 80000, 85750, 98000, 109760, 112000, 122500, 137200, 140000, 156800, 171500, 196000, 214375, 219520, 245000, 274400, 280000, 343000, 392000, 428750, 490000, 548800, 560000, 686000, 784000, 857500, 980000, 1097600, 1372000, 1715000, 1960000, 2744000, 3430000, 3920000, 5488000, 6860000, 13720000, 27440000]

約数ペア:

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