20576570

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{857}}^1$

素因数の和:892

約数の個数: 40

約数和(自身を含む): 43258644

約数和(自身を除く): 22682074

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 857, 1714, 1715, 2401, 3430, 4285, 4802, 5999, 8570, 11998, 12005, 24010, 29995, 41993, 59990, 83986, 209965, 293951, 419930, 587902, 1469755, 2057657, 2939510, 4115314, 10288285, 20576570]

約数ペア:

[(1, 20576570), (2, 10288285), (5, 4115314), (7, 2939510), (10, 2057657), (14, 1469755), (35, 587902), (49, 419930), (70, 293951), (98, 209965), (245, 83986), (343, 59990), (490, 41993), (686, 29995), (857, 24010), (1714, 12005), (1715, 11998), (2401, 8570), (3430, 5999), (4285, 4802)]