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A007850
Giuga numbers: numbers n such that p divides n/p - 1 for every prime divisor p of n.
+0
5
30, 858, 1722, 66198, 2214408306, 24423128562, 432749205173838, 14737133470010574, 550843391309130318, 244197000982499715087866346, 554079914617070801288578559178, 1910667181420507984555759916338506
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.
AT&T Labs Research
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