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A001157 sigma_2(n): sum of squares of divisors of n.
(Formerly M3799 N1551)
+0
193
1, 5, 10, 21, 26, 50, 50, 85, 91, 130, 122, 210, 170, 250, 260, 341, 290, 455, 362, 546, 500, 610, 530, 850, 651, 850, 820, 1050, 842, 1300, 962, 1365, 1220, 1450, 1300, 1911, 1370, 1810, 1700, 2210, 1682, 2500, 1850, 2562, 2366, 2650, 2210, 3410, 2451, 3255 (list; graph; listen)
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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