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A217126 Numbers n such that n = k/d(k) has exactly 5 solutions, where d(k) = number of divisors of k. 5

%I #8 Sep 29 2012 21:09:22

%S 64000,290304,352000,432000,544000,608000,736000,928000,992000,

%T 1036800,1184000,1312000,1376000,1504000,1512000,1596672,1696000,

%U 1888000,1952000,2100875,2144000,2272000,2336000,2467584,2515968,2528000,2592000,2656000,2757888,2848000

%N Numbers n such that n = k/d(k) has exactly 5 solutions, where d(k) = number of divisors of k.

%H Donovan Johnson, <a href="/A217126/b217126.txt">Table of n, a(n) for n = 1..500</a>

%e k/d(k) = 64000 for exactly 5 k values: 4096000, 6656000, 7040000, 7168000 and 11520000.

%Y Cf. A051278, A051279, A051280, A051346, A217125, A217127.

%K nonn

%O 1,1

%A _Donovan Johnson_, Sep 27 2012

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Last modified August 31 10:49 EDT 2024. Contains 375560 sequences. (Running on oeis4.)