19140400

素因数分解:

$2^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:566

約数の個数: 60

約数和(自身を含む): 46512400

約数和(自身を除く): 27372000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 200, 218, 400, 436, 439, 545, 872, 878, 1090, 1744, 1756, 2180, 2195, 2725, 3512, 4360, 4390, 5450, 7024, 8720, 8780, 10900, 10975, 17560, 21800, 21950, 35120, 43600, 43900, 47851, 87800, 95702, 175600, 191404, 239255, 382808, 478510, 765616, 957020, 1196275, 1914040, 2392550, 3828080, 4785100, 9570200, 19140400]

約数ペア:

[(1, 19140400), (2, 9570200), (4, 4785100), (5, 3828080), (8, 2392550), (10, 1914040), (16, 1196275), (20, 957020), (25, 765616), (40, 478510), (50, 382808), (80, 239255), (100, 191404), (109, 175600), (200, 95702), (218, 87800), (400, 47851), (436, 43900), (439, 43600), (545, 35120), (872, 21950), (878, 21800), (1090, 17560), (1744, 10975), (1756, 10900), (2180, 8780), (2195, 8720), (2725, 7024), (3512, 5450), (4360, 4390)]