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Is 1540 a perfect number? [SOLVED]

Answer


1540 is not perfect because:

1 + 2 + 4 + 5 + 7 + 10 + 11 + 14 + 20 + 22 + 28 + 35 + 44 + 55 + 70 + 77 + 110 + 140 + 154 + 220 + 308 + 385 + 770 1540
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