209703568

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 449864064

約数和(自身を除く): 240160496

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 67, 68, 74, 134, 136, 148, 268, 272, 296, 311, 536, 592, 622, 629, 1072, 1139, 1244, 1258, 2278, 2479, 2488, 2516, 4556, 4958, 4976, 5032, 5287, 9112, 9916, 10064, 10574, 11507, 18224, 19832, 20837, 21148, 23014, 39664, 41674, 42143, 42296, 46028, 83348, 84286, 84592, 92056, 166696, 168572, 184112, 195619, 333392, 337144, 354229, 391238, 674288, 708458, 770969, 782476, 1416916, 1541938, 1564952, 2833832, 3083876, 3129904, 5667664, 6167752, 12335504, 13106473, 26212946, 52425892, 104851784, 209703568]

約数ペア:

[(1, 209703568), (2, 104851784), (4, 52425892), (8, 26212946), (16, 13106473), (17, 12335504), (34, 6167752), (37, 5667664), (67, 3129904), (68, 3083876), (74, 2833832), (134, 1564952), (136, 1541938), (148, 1416916), (268, 782476), (272, 770969), (296, 708458), (311, 674288), (536, 391238), (592, 354229), (622, 337144), (629, 333392), (1072, 195619), (1139, 184112), (1244, 168572), (1258, 166696), (2278, 92056), (2479, 84592), (2488, 84286), (2516, 83348), (4556, 46028), (4958, 42296), (4976, 42143), (5032, 41674), (5287, 39664), (9112, 23014), (9916, 21148), (10064, 20837), (10574, 19832), (11507, 18224)]