A363297 Unitary weird numbers (A064114) with more unitary divisors than any smaller weird number.

70, 4030, 4199030, 5702250610

Offset

1,1

Comments

The corresponding numbers of unitary divisors are 8, 16, 32, 64, ...

a(5) > 10^10, if it exists.

a(5) <= 10805836895078390 and this number has 128 unitary divisors. - Alexander Violette, Jan 09 2026

Links

Table of n, a(n) for n=1..4.

Example

The first 2 unitary weird numbers, 70 and 4030, have an increasing number of unitary divisors, 8 and 16. The least unitary weird number with more than 16 unitary divisors is the 6091st unitary weird number, 4199030, which has 32 unitary divisors.

Crossrefs

Cf. A034444, A064114, A335008.

Sequence in context: A354283 A319735 A258374 * A146349 A180884 A238540

Adjacent sequences: A363294 A363295 A363296 * A363298 A363299 A363300

Keyword

nonn,hard,more

Author

Amiram Eldar, May 26 2023

Status

approved