85936

Appears in sequences

• Numbers m such that 2*m - sigma(m) is a divisor of m and greater than one, where sigma = A000203 is the sum of divisors.at n=20A060326
• Numbers k with abundance radius of 8, i.e., abs(sigma(k)-2*k) = 8.at n=15A088820
• Near-multiperfects with primes and powers of 2 excluded, abs(sigma(m) mod m) <= log(m).at n=39A117348
• Near-multiperfects with primes, powers of 2 and 6 * prime excluded, abs(sigma(n) mod n) <= log(n).at n=39A117349
• Near-multiperfects with primes, powers of 2, 6 * prime and 2^n * prime excluded, abs(sigma(n) mod n) <= log(n).at n=20A117350
• Numbers k whose abundance sigma(k) - 2*k = -8. Numbers k whose deficiency is 8.at n=8A125247
• Deficient-perfect numbers: Deficient numbers n such that n/(2n-sigma(n)) is an integer.at n=37A271816
• Numbers k such that sigma(k) == 0 (mod k-4).at n=14A274554
• Positive numbers n for which A000120(n) = k*A294898(n), with k < 0; numbers for which A326130(n) = sigma(n) - A005187(n).at n=7A326131
• Numbers n for which A294898(n) is not zero and A294898(n) divides A000120(n); numbers for which A326130(n) = abs(A294898(n)).at n=26A326132
• Numbers k such that A005187(k) < sigma(k) <= 2k, where A005187(k) = 2k - {binary weight of k}.at n=7A326138
• Deficient numbers k > 1 such that k*p is abundant for all primes p dividing k.at n=11A341358