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Search: id:A097863
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| A097863 |
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Sum of 5-infinitary divisors of n. |
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+0
1
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| 1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 12, 28, 14, 24, 24, 31, 18, 39, 20, 42, 32, 36, 24, 60, 31, 42, 40, 56, 30, 72, 32, 33, 48, 54, 48, 91, 38, 60, 56, 90
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OFFSET
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1,2
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COMMENT
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If n=Product p_i^r_i and d=Product p_i^s_i, each s_i has a digit a<=b in its 5-ary expansion everywhere that the corresponding r_i has a digit b, then d is a 5-infinitary-divisor of n.
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EXAMPLE
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a(32)=a(2^10)=2^10+2^0=32+1=33, in 5-ary expansion. This is the first term which is different from sigma(n)
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CROSSREFS
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Cf. A097464.
Sequence in context: A140782 A097011 A074847 this_sequence A097012 A000203 A003979
Adjacent sequences: A097860 A097861 A097862 this_sequence A097864 A097865 A097866
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KEYWORD
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nonn
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AUTHOR
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Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp) Yasutoshi
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