由a*b=2(a+2ab+b)=4ab+2a+2b,当m*n=2000时,有4mn+2m+2n=20004mn+2m+2n+1=2001(2m+1)(2n+1)=2001因为2001=3 ×23×29,所以2m+1=3,m=1,2n+1=667,n=333,得(1,333)2m+1=23,m=11,2n+1=87,n=43
得(11,43)2m+1=29,m=14,,2n+1=69,n=34
得(14,34)2m+1=69, m=34,2n+1=29,n=14,
得(34,14)2m+1=87,m=43, 2n+1=23,n=11
(43,11)...
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