20.21.22.23.24.25.26.27.28.29.30.的因数与倍数是多少

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20.21.22.23.24.25.26.27.28.29.30.的因数与倍数是多少
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20.21.22.23.24.25.26.27.28.29.30.的因数与倍数是多少
20.21.22.23.24.25.26.27.28.29.30.的因数与倍数是多少

20.21.22.23.24.25.26.27.28.29.30.的因数与倍数是多少
20:1,2,4,5,10,20
  21:1,3,7,21
  22:1,2,11,22
  23:1,23
  24:1,2,3,8,12,24,4,6,
  25:1,5,25
  26:1,2,13,26
  27:1,27,3,9
  28:1,2,28,14,4,7
  29:1,29
  30:1,30,2,15,3,10,5,6