A097974 - cp's OEIS frontend

A097974 Sum of distinct prime divisors of n which are <= sqrt(n).

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	2
7	0
8	2
9	3
10	2
11	0
12	5
13	0
14	2
15	3
16	2
17	0
18	5
19	0
20	2
21	3
22	2
23	0
24	5
25	5
26	2
27	3
28	2
29	0
30	10
31	0
32	2
33	3
34	2
35	5
36	5
37	0
38	2
39	3
40	7
41	0
42	5
43	0
44	2
45	8
46	2
47	0
48	5
49	7
50	7
51	3
52	2
53	0
54	5
55	5
56	9
57	3
58	2
59	0
60	10
61	0
62	2
63	10
64	2
65	5
66	5
67	0
68	2
69	3
70	14
71	0
72	5
73	0
74	2
75	8
76	2
77	7
78	5
79	0
80	7
81	3
82	2
83	0
84	12
85	5
86	2
87	3
88	2
89	0
90	10
91	7
92	2
93	3
94	2
95	5
96	5
97	0
98	9
99	3
100	7
101	0
102	5
103	0

[0, 0, 0, 2, 0, 2, 0, 2, 3, 2, 0, 5, 0, 2, 3, 2, 0, 5, 0, 2, 3, 2, 0, 5, 5, 2, 3, 2, 0, 10, 0, 2, 3, 2, 5, 5, 0, 2, 3, 7, 0, 5, 0, 2, 8, 2, 0, 5, 7, 7, 3, 2, 0, 5, 5, 9, 3, 2, 0, 10, 0, 2, 10, 2, 5, 5, 0, 2, 3, 14, 0, 5, 0, 2, 8, 2, 7, 5, 0, 7, 3, 2, 0, 12, 5, 2, 3, 2, 0, 10, 7, 2, 3, 2, 5, 5, 0, 9, 3, 7, 0, 5, 0]

cp's OEIS Frontend

A097974 Sum of distinct prime divisors of n which are <= sqrt(n).

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	2
7	0
8	2
9	3
10	2
11	0
12	5
13	0
14	2
15	3
16	2
17	0
18	5
19	0
20	2
21	3
22	2
23	0
24	5
25	5
26	2
27	3
28	2
29	0
30	10
31	0
32	2
33	3
34	2
35	5
36	5
37	0
38	2
39	3
40	7
41	0
42	5
43	0
44	2
45	8
46	2
47	0
48	5
49	7
50	7
51	3
52	2
53	0
54	5
55	5
56	9
57	3
58	2
59	0
60	10
61	0
62	2
63	10
64	2
65	5
66	5
67	0
68	2
69	3
70	14
71	0
72	5
73	0
74	2
75	8
76	2
77	7
78	5
79	0
80	7
81	3
82	2
83	0
84	12
85	5
86	2
87	3
88	2
89	0
90	10
91	7
92	2
93	3
94	2
95	5
96	5
97	0
98	9
99	3
100	7
101	0
102	5
103	0

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	2
7	0
8	2
9	3
10	2
11	0
12	5
13	0
14	2
15	3
16	2
17	0
18	5
19	0
20	2
21	3
22	2
23	0
24	5
25	5
26	2
27	3
28	2
29	0
30	10
31	0
32	2
33	3
34	2
35	5
36	5
37	0
38	2
39	3
40	7
41	0
42	5
43	0
44	2
45	8
46	2
47	0
48	5
49	7
50	7
51	3
52	2
53	0
54	5
55	5
56	9
57	3
58	2
59	0
60	10
61	0
62	2
63	10
64	2
65	5
66	5
67	0
68	2
69	3
70	14
71	0
72	5
73	0
74	2
75	8
76	2
77	7
78	5
79	0
80	7
81	3
82	2
83	0
84	12
85	5
86	2
87	3
88	2
89	0
90	10
91	7
92	2
93	3
94	2
95	5
96	5
97	0
98	9
99	3
100	7
101	0
102	5
103	0

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	2
7	0
8	2
9	3
10	2
11	0
12	5
13	0
14	2
15	3
16	2
17	0
18	5
19	0
20	2
21	3
22	2
23	0
24	5
25	5
26	2
27	3
28	2
29	0
30	10
31	0
32	2
33	3
34	2
35	5
36	5
37	0
38	2
39	3
40	7
41	0
42	5
43	0
44	2
45	8
46	2
47	0
48	5
49	7
50	7
51	3
52	2
53	0
54	5
55	5
56	9
57	3
58	2
59	0
60	10
61	0
62	2
63	10
64	2
65	5
66	5
67	0
68	2
69	3
70	14
71	0
72	5
73	0
74	2
75	8
76	2
77	7
78	5
79	0
80	7
81	3
82	2
83	0
84	12
85	5
86	2
87	3
88	2
89	0
90	10
91	7
92	2
93	3
94	2
95	5
96	5
97	0
98	9
99	3
100	7
101	0
102	5
103	0