说说下面各数各有几个因数。4w4i3W.k)P9a:a-B2e2a.[4m3V'E,E
174X5@3s3X.j3F7x4g个；287X,F3r'W)R'P.i+a.d个；849X3[)h,p(h/Y4T6L9K,i;F,M个；28和848e0]/e4J0A0S1u-g个；28和563\*s2f4E2s2]个。4w4i3W.k)P9a:a-B2e2a.[4m3V'E,E