亲和数

When I looked up at John again, he was barely able to contain his excitement anymore."They're amicable numbers," he said."I wrote a computer program and let it run for twelve hours. These were the biggest ones I found, and then I double-knitted them in. I thought you might like it."

我抬头再看约翰，他已难掩兴奋之情："这是一组亲和数，"他解释道，"我编了个程序，让它运行了十二个小时，这是我能找到的最大一组亲和数，然后我把它们织进布料的两面，我想你也许会喜欢。"

The discussion is based on some property of arithmetic function.

为了判断整数是否为亲和数，在讨论数论函数性质的基础上，找到一种验证一个整数是否是亲和数的方法，从而给出了f=x2x+1不与任何正整数构成亲和数的结论，这里x为偶数，即关于y的方程σf(x=σ=f+y不存在正整数解。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。