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Is 3520 a perfect number? [SOLVED]

Answer


3520 is not perfect because:

1 + 2 + 4 + 5 + 8 + 10 + 11 + 16 + 20 + 22 + 32 + 40 + 44 + 55 + 64 + 80 + 88 + 110 + 160 + 176 + 220 + 320 + 352 + 440 + 704 + 880 + 1760 3520
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