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Is 2820 a perfect number? [SOLVED]

Answer


2820 is not perfect because:

1 + 2 + 3 + 4 + 5 + 6 + 10 + 12 + 15 + 20 + 30 + 47 + 60 + 94 + 141 + 188 + 235 + 282 + 470 + 564 + 705 + 940 + 1410 2820
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