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A083900 Number of divisors of n with largest digit <= 5 (base 10). 4
1, 2, 2, 3, 2, 3, 1, 3, 2, 4, 2, 5, 2, 3, 4, 3, 1, 3, 1, 6, 3, 4, 2, 6, 3, 3, 2, 4, 1, 7, 2, 4, 4, 3, 3, 5, 1, 2, 3, 7, 2, 6, 2, 6, 5, 3, 1, 6, 1, 6, 3, 5, 2, 4, 4, 4, 2, 2, 1, 10, 1, 3, 3, 4, 3, 6, 1, 4, 3, 6, 1, 6, 1, 2, 5, 3, 2, 4, 1, 7, 2, 3, 1, 8, 2, 3, 2, 6, 1, 8, 2, 4, 3, 2, 2, 7, 1, 3, 4, 9, 2, 6, 2, 6, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = A083899(n) + A083892(n) = A083901(n) - A083893(n).
Asymptotic mean: Limit_{m->oo} (1/m) * Sum_{k=1..m} a(k) = Sum_{k>=1} 1/A007092(k) = 5.25448032967060504709... . - Amiram Eldar, Jan 04 2024
MATHEMATICA
Table[Count[Divisors[n], _?(Max[IntegerDigits[#]]<6&)], {n, 110}] (* Harvey P. Dale, Feb 02 2015 *)
CROSSREFS
Sequence in context: A261653 A347658 A343387 * A369030 A113517 A278399
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, May 08 2003
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)