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A073183
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Sum of divisors of n which are not greater than the cube-free kernel of n.
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4
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1, 3, 4, 7, 6, 12, 8, 7, 13, 18, 12, 28, 14, 24, 24, 7, 18, 39, 20, 42, 32, 36, 24, 36, 31, 42, 13, 56, 30, 72, 32, 7, 48, 54, 48, 91, 38, 60, 56, 50, 42, 96, 44, 84, 78, 72, 48, 36, 57, 93, 72, 98, 54, 39, 72, 64, 80, 90, 60, 168, 62, 96, 104, 7, 84, 144, 68, 126, 96, 144, 72
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(n) >= A073185(n).
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EXAMPLE
| The cube-free kernel of 56=7*2^3 is 28=7*2^2 and the divisors <= 28 of 56 are {1, 2, 4, 7, 8, 14, 28}, therefore a(56)=1+2+4+7+8+14+28=64.
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CROSSREFS
| Cf. A000203, A073182, A073181.
Sequence in context: A057032 A113957 A073185 * A049418 A051378 A116607
Adjacent sequences: A073180 A073181 A073182 * A073184 A073185 A073186
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KEYWORD
| nonn
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AUTHOR
| Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 19 2002
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