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Is 2280 a perfect number? [SOLVED]

Answer

2280 is not perfect because:

1 + 2 + 3 + 4 + 5 + 6 + 8 + 10 + 12 + 15 + 19 + 20 + 24 + 30 + 38 + 40 + 57 + 60 + 76 + 95 + 114 + 120 + 152 + 190 + 228 + 285 + 380 + 456 + 570 + 760 + 1140 ≠ 2280
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