Search: id:A089285
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%I A089285
%S A089285 4,32,474,4550,38688,314160,5890500,47154384,627314688,4227938208,
%T A089285 44474529792,471238898040,3384209127992,31609375538016,321468276096000,
%U A089285 3397292023738536,63981878014882800,314159266666564480
%N A089285 Sum of divisors of floor(pi*10^n), pi=3.14...
%C A089285 a(n)=A000203(A011545(n)).
%e A089285 n=4: floor(pi*10^4)=31415 with divisors:
%e A089285 {1,5,61,103,305,515,6283,31415}: a(4)=1+5+61+103+305+515+6283+31415=38688.
%Y A089285 Cf. A089284, A089286, A089287, A000796.
%Y A089285 Sequence in context: A009668 A005121 A037964 this_sequence A086906 A034663 
               A093581
%Y A089285 Adjacent sequences: A089282 A089283 A089284 this_sequence A089286 A089287 
               A089288
%K A089285 nonn
%O A089285 0,1
%A A089285 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2003

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