77744

Appears in sequences

• Numbers k such that sigma(k) == 8 (mod k).at n=10A045770
• Numbers k with abundance radius of 8, i.e., abs(sigma(k)-2*k) = 8.at n=14A088820
• Numbers k whose abundance is 8: sigma(k) - 2*k = 8.at n=6A088833
• Admirable numbers whose abundance is < 10.at n=20A109788
• Admirable numbers such that the subtracted divisor is square.at n=16A109806
• Phi(A033631(n)) {phi is the Euler totient function A000010}.at n=22A115620
• Near-multiperfects with primes and powers of 2 excluded, abs(sigma(m) mod m) <= log(m).at n=38A117348
• Near-multiperfects with primes, powers of 2 and 6 * prime excluded, abs(sigma(n) mod n) <= log(n).at n=38A117349
• Near-multiperfects with primes, powers of 2, 6 * prime and 2^n * prime excluded, abs(sigma(n) mod n) <= log(n).at n=19A117350
• Abundant numbers n such that n/(sigma(n)-2n) is an integer.at n=33A153501
• Abundant numbers n for which the abundance d = sigma(n) - 2*n is a proper divisor, that is, 0 < d < n and d | n.at n=31A181595
• Numbers m with divisor 8 | m and abundance sigma(m)-2*m = 8.at n=4A181598
• Numbers k such that sigma(k) == 0 (mod k+4).at n=9A274553
• Primitive nondeficient numbers satisfying a stronger condition that compares abundancy with related numbers as detailed in the comments.at n=29A352739
• Primitive abundant numbers k (A071395) whose abundancy index sigma(k)/k has a record low value.at n=13A362053