A076932 - OEIS

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A076932

Largest k such that n*k has n divisors, or 0 if there are no possibilities for k or infinitely many.

1, 1, 3, 2, 125, 3, 16807, 0, 0, 125, 2357947691, 0, 1792160394037, 16807, 375, 0, 2862423051509815793, 0, 5480386857784802185939, 0, 50421, 2357947691, 39471584120695485887249589623, 0, 0, 1792160394037, 0, 0

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OFFSET

1,3

LINKS

Table of n, a(n) for n=1..28.

EXAMPLE

a(6) = 3 (and not 2) as 18 has six divisors though 12 also has 6 divisors. a(8) = 0 as for every prime p > 2 8p has 8 divisors.

CROSSREFS

Cf. A073904, A076931.

Sequence in context: A183270 A152017 A076931 * A244083 A303683 A187825

Adjacent sequences: A076929 A076930 A076931 * A076933 A076934 A076935

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Oct 18 2002

EXTENSIONS

More terms from Sascha Kurz, Jan 21 2003

STATUS

approved