Rubyで完全数を配列にしたった？？ | Codetter（こーどったー）

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def perfect_num n
  get_array(n, [])
end
def get_array(n, a)
  return a if n == 0
  x = 0
  
  (1..n-1).each {|i|
    x += i if n%i == 0
  }
  a.push n if n == x
  get_array(n-1, a)
end
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