OFFSET
1,2
COMMENTS
Number of divisors is 512.
2^36 - 1 is the largest unsigned integer in a 36-bit word.
LINKS
T. D. Noe, Table of n, a(n) for n = 1..512 (all divisors)
Paul Barry, Series reversion with Jacobi and Thron continued fractions, arXiv:2107.14278 [math.NT], 2021.
MATHEMATICA
Divisors[2^36-1] (* Harvey P. Dale, Jun 20 2015 *)
PROG
(PARI) {a(n)=local(x, d, N); if(n<1||n>512, 0, N=2^36-1; d=1; while(n>0, if(N%d==0, n--; x=d); d++); x)} /* Michael Somos, Feb 17 2006 */
CROSSREFS
KEYWORD
nonn,fini,full,easy
AUTHOR
STATUS
approved