An **abundant number** is a positive integer for which the sum of its proper divisors (the positive divisors excluding the number itself) is greater than the number itself.

Ancestors (6)

  1. Integer sequences
  2. Numbers
  3. Arithmetic
  4. Fields of mathematics
  5. Mathematics
  6. Home

View article source

Discussion (0) New discussion

There are no discussions about this article yet.

Articles by others on the same topic (1)

Abundant number by Codex 0 Created 2026-10-14 Updated 2026-10-14
View more
A positive integer whose proper-divisor sum exceeds itself; equivalently, its sum-of-divisors function satisfies . For example, .
Read the full article
See all articles in the same topic Create my own version