13720000

素因数分解:

$2^6\times 5^4\times 7^3$

素因数の和:53

約数の個数: 140

約数和(自身を含む): 39674800

約数和(自身を除く): 25954800

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, 140, 160, 175, 196, 200, 224, 245, 250, 280, 320, 343, 350, 392, 400, 448, 490, 500, 560, 625, 686, 700, 784, 800, 875, 980, 1000, 1120, 1225, 1250, 1372, 1400, 1568, 1600, 1715, 1750, 1960, 2000, 2240, 2450, 2500, 2744, 2800, 3136, 3430, 3500, 3920, 4000, 4375, 4900, 5000, 5488, 5600, 6125, 6860, 7000, 7840, 8000, 8575, 8750, 9800, 10000, 10976, 11200, 12250, 13720, 14000, 15680, 17150, 17500, 19600, 20000, 21952, 24500, 27440, 28000, 30625, 34300, 35000, 39200, 40000, 42875, 49000, 54880, 56000, 61250, 68600, 70000, 78400, 85750, 98000, 109760, 122500, 137200, 140000, 171500, 196000, 214375, 245000, 274400, 280000, 343000, 392000, 428750, 490000, 548800, 686000, 857500, 980000, 1372000, 1715000, 1960000, 2744000, 3430000, 6860000, 13720000]

約数ペア:

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