686756888

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 1502323200

約数和(自身を除く): 815566312

約数列:

[1, 2, 4, 8, 17, 29, 31, 34, 41, 58, 62, 68, 82, 116, 124, 136, 137, 164, 232, 248, 274, 328, 493, 527, 548, 697, 899, 986, 1054, 1096, 1189, 1271, 1394, 1798, 1972, 2108, 2329, 2378, 2542, 2788, 3596, 3944, 3973, 4216, 4247, 4658, 4756, 5084, 5576, 5617, 7192, 7946, 8494, 9316, 9512, 10168, 11234, 15283, 15892, 16988, 18632, 20213, 21607, 22468, 30566, 31784, 33976, 36859, 40426, 43214, 44936, 61132, 67541, 72199, 73718, 80852, 86428, 95489, 122264, 123163, 135082, 144398, 147436, 161704, 162893, 172856, 174127, 190978, 246326, 270164, 288796, 294872, 325786, 348254, 381956, 492652, 540328, 577592, 626603, 651572, 696508, 763912, 985304, 1253206, 1303144, 1393016, 2093771, 2506412, 2769181, 2960159, 4187542, 5012824, 5049683, 5538362, 5920318, 8375084, 10099366, 11076724, 11840636, 16750168, 20198732, 22153448, 23681272, 40397464, 85844611, 171689222, 343378444, 686756888]

約数ペア:

[(1, 686756888), (2, 343378444), (4, 171689222), (8, 85844611), (17, 40397464), (29, 23681272), (31, 22153448), (34, 20198732), (41, 16750168), (58, 11840636), (62, 11076724), (68, 10099366), (82, 8375084), (116, 5920318), (124, 5538362), (136, 5049683), (137, 5012824), (164, 4187542), (232, 2960159), (248, 2769181), (274, 2506412), (328, 2093771), (493, 1393016), (527, 1303144), (548, 1253206), (697, 985304), (899, 763912), (986, 696508), (1054, 651572), (1096, 626603), (1189, 577592), (1271, 540328), (1394, 492652), (1798, 381956), (1972, 348254), (2108, 325786), (2329, 294872), (2378, 288796), (2542, 270164), (2788, 246326), (3596, 190978), (3944, 174127), (3973, 172856), (4216, 162893), (4247, 161704), (4658, 147436), (4756, 144398), (5084, 135082), (5576, 123163), (5617, 122264), (7192, 95489), (7946, 86428), (8494, 80852), (9316, 73718), (9512, 72199), (10168, 67541), (11234, 61132), (15283, 44936), (15892, 43214), (16988, 40426), (18632, 36859), (20213, 33976), (21607, 31784), (22468, 30566)]