alleryThe sum of the proper divisors of a number is known by which name?
AAliquot sum
BDigit sum
CAlternating sum
DRunning sum
Answer & Solution
Correct answer: A. Aliquot sum
1. Add all divisors of a number except itself.
2. The result is called its aliquot sum.
3. A perfect number equals its aliquot sum.
_Source: Wikipedia, Perfect number, lead section_
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