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A048946
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Product of divisors of n is a fifth power.
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1
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1, 16, 32, 48, 80, 81, 112, 144, 162, 176, 208, 240, 243, 272, 304, 324, 336, 368, 400, 405, 432, 464, 496, 512, 528, 560, 567, 592, 624, 625, 648, 656, 688, 720, 752, 784, 810, 816, 848, 880, 891, 912, 944, 976, 1008, 1024, 1040, 1053, 1072, 1104, 1134
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Divisor Product
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PROG
| (PARI) isA048946(n)=ispower(n, 5)|numdiv(n)%5==0 \\ Charles R Greathouse IV, May 25, 2011
(MAGMA) A048946:=func< n | IsPower(&*Divisors(n), 5) >; [ n: n in [1..1134] | A048946(n) ]; // Bruno Berselli, May 25 2011
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CROSSREFS
| Cf. A007955 (product of divisors of n).
Sequence in context: A023707 A044442 A082294 * A101426 A204645 A018923
Adjacent sequences: A048943 A048944 A048945 * A048947 A048948 A048949
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KEYWORD
| nonn,easy
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com)
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