20100能整除的是數(shù),不是數(shù)字。
20100能整除的數(shù)是 20100n,n?是自然數(shù);
所以,20100能整除的數(shù)有無窮多個 。
20100 = 2 * 2 * 3 * 5 * 5 * 67;
所以,能整除 20100?的數(shù)有?36個:
1,2,3,4,5,6,10,12,15,20,25,30,50,60,67,75,100,134,150,201,268,300,
335,402,670,804,1005,1340,1675,2010,3350,4020,5025,6700,10050,20100;