deficient number
英[dɪˈfɪʃənt ˈnʌmbə]美[dɪˈfɪʃənt ˈnʌmbɚ]
In number theory, a deficient number or defective number is a number n for which the sum of divisors σ(n)[n, n + (\log n)^2] for all sufficiently large n.Sándor et al (2006) p.
2025-09-06 22:43 浏览次数 5
In number theory, a deficient number or defective number is a number n for which the sum of divisors σ(n)[n, n + (\log n)^2] for all sufficiently large n.Sándor et al (2006) p.