28.38.72.125.27.45.90这些数的因数有那些?
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参考答案:28的因数有:1,2,4,7,14,28
38的因数有:1,2,19,38
72的因数有:1,2,3,4,6,8,9,12,18,24,36,72
125的因数有:1,5,25,125
27的因数有:1,3,9,27
45的因数有:1,3,5,9,15,45
90的因数有:1,2,3,5,6,9,10,15,18,30,45,90