31 lines
431 B
Ruby
31 lines
431 B
Ruby
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class Integer
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def divisors
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divisors = []
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(1..Math.sqrt(self).to_i).each do |num|
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if self % num == 0
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divisors << num
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divisors << self / num
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end
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end
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divisors
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end
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end
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triangle = Enumerator.new do |y|
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sum = 1
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next_num = 2
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loop do
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y << sum
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sum += next_num
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next_num += 1
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end
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end
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val = triangle.next
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while val.divisors.count < 500
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val = triangle.next
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end
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puts val
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