257427534

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 666796032

約数和(自身を除く): 409368498

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 31, 39, 42, 62, 67, 78, 91, 93, 134, 182, 186, 201, 217, 227, 273, 402, 403, 434, 454, 469, 546, 651, 681, 806, 871, 938, 1209, 1302, 1362, 1407, 1589, 1742, 2077, 2418, 2613, 2814, 2821, 2951, 3178, 4154, 4767, 5226, 5642, 5902, 6097, 6231, 7037, 8463, 8853, 9534, 12194, 12462, 14074, 14539, 15209, 16926, 17706, 18291, 20657, 21111, 27001, 29078, 30418, 36582, 41314, 42222, 43617, 45627, 49259, 54002, 61971, 81003, 87234, 91254, 91481, 98518, 106463, 123942, 147777, 162006, 182962, 189007, 197717, 212926, 274443, 295554, 319389, 378014, 395434, 471479, 548886, 567021, 593151, 638778, 640367, 942958, 1134042, 1186302, 1280734, 1384019, 1414437, 1921101, 2768038, 2828874, 3300353, 3842202, 4152057, 6129227, 6600706, 8304114, 9901059, 12258454, 18387681, 19802118, 36775362, 42904589, 85809178, 128713767, 257427534]

約数ペア:

[(1, 257427534), (2, 128713767), (3, 85809178), (6, 42904589), (7, 36775362), (13, 19802118), (14, 18387681), (21, 12258454), (26, 9901059), (31, 8304114), (39, 6600706), (42, 6129227), (62, 4152057), (67, 3842202), (78, 3300353), (91, 2828874), (93, 2768038), (134, 1921101), (182, 1414437), (186, 1384019), (201, 1280734), (217, 1186302), (227, 1134042), (273, 942958), (402, 640367), (403, 638778), (434, 593151), (454, 567021), (469, 548886), (546, 471479), (651, 395434), (681, 378014), (806, 319389), (871, 295554), (938, 274443), (1209, 212926), (1302, 197717), (1362, 189007), (1407, 182962), (1589, 162006), (1742, 147777), (2077, 123942), (2418, 106463), (2613, 98518), (2814, 91481), (2821, 91254), (2951, 87234), (3178, 81003), (4154, 61971), (4767, 54002), (5226, 49259), (5642, 45627), (5902, 43617), (6097, 42222), (6231, 41314), (7037, 36582), (8463, 30418), (8853, 29078), (9534, 27001), (12194, 21111), (12462, 20657), (14074, 18291), (14539, 17706), (15209, 16926)]