18519880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9851}}^1$

素因数の和:9909

約数の個数: 32

約数和(自身を含む): 42560640

約数和(自身を除く): 24040760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9851, 19702, 39404, 49255, 78808, 98510, 197020, 394040, 462997, 925994, 1851988, 2314985, 3703976, 4629970, 9259940, 18519880]

約数ペア:

[(1, 18519880), (2, 9259940), (4, 4629970), (5, 3703976), (8, 2314985), (10, 1851988), (20, 925994), (40, 462997), (47, 394040), (94, 197020), (188, 98510), (235, 78808), (376, 49255), (470, 39404), (940, 19702), (1880, 9851)]