English Dictionary

abundant number

IPA（発音記号）

/əˈbʌn.dn̩t ˈnʌm.bə/

名詞

(number theory) A number that is less than the sum of its proper divisors (all divisors except the number itself).

日本語の意味

その正の約数（自身を除く）の和がその数自体より大きい数、すなわち、数論においては「過剰数」と呼ばれる数を指す

In elementary number theory, an abundant number like 12 is one whose proper divisors add up to more than the number itself.

初等数論では、真の約数の和がその数自身より大きい、12のような数は過剰数の例です。

意味（1）

(number theory) A number that is less than the sum of its proper divisors (all divisors except the number itself).

The factors of 30 are 1, 2, 3, 5, 6, 10, 15 and 30, and 1 + 2 + 3 + 5 + 6 + 10 + 15 = 42, which is greater than 30, so 30 is an abundant number.

abundant numbers （ plural ）