68456960

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:75

約数の個数: 240

約数和(自身を含む): 205721208

約数和(自身を除く): 137264248

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 32, 34, 40, 44, 52, 55, 64, 65, 68, 80, 85, 88, 104, 110, 121, 128, 130, 136, 143, 160, 170, 176, 187, 208, 220, 221, 242, 256, 260, 272, 286, 320, 340, 352, 374, 416, 440, 442, 484, 512, 520, 544, 572, 605, 640, 680, 704, 715, 748, 832, 880, 884, 935, 968, 1040, 1088, 1105, 1144, 1210, 1280, 1360, 1408, 1430, 1496, 1573, 1664, 1760, 1768, 1870, 1936, 2057, 2080, 2176, 2210, 2288, 2420, 2431, 2560, 2720, 2816, 2860, 2992, 3146, 3328, 3520, 3536, 3740, 3872, 4114, 4160, 4352, 4420, 4576, 4840, 4862, 5440, 5632, 5720, 5984, 6292, 6656, 7040, 7072, 7480, 7744, 7865, 8228, 8320, 8704, 8840, 9152, 9680, 9724, 10285, 10880, 11440, 11968, 12155, 12584, 14080, 14144, 14960, 15488, 15730, 16456, 16640, 17680, 18304, 19360, 19448, 20570, 21760, 22880, 23936, 24310, 25168, 26741, 28160, 28288, 29920, 30976, 31460, 32912, 33280, 35360, 36608, 38720, 38896, 41140, 43520, 45760, 47872, 48620, 50336, 53482, 56576, 59840, 61952, 62920, 65824, 70720, 73216, 77440, 77792, 82280, 91520, 95744, 97240, 100672, 106964, 113152, 119680, 125840, 131648, 133705, 141440, 154880, 155584, 164560, 183040, 194480, 201344, 213928, 239360, 251680, 263296, 267410, 282880, 309760, 311168, 329120, 366080, 388960, 402688, 427856, 478720, 503360, 526592, 534820, 565760, 622336, 658240, 777920, 805376, 855712, 1006720, 1053184, 1069640, 1244672, 1316480, 1555840, 1711424, 2013440, 2139280, 2632960, 3111680, 3422848, 4026880, 4278560, 5265920, 6223360, 6845696, 8557120, 13691392, 17114240, 34228480, 68456960]

約数ペア:

[(1, 68456960), (2, 34228480), (4, 17114240), (5, 13691392), (8, 8557120), (10, 6845696), (11, 6223360), (13, 5265920), (16, 4278560), (17, 4026880), (20, 3422848), (22, 3111680), (26, 2632960), (32, 2139280), (34, 2013440), (40, 1711424), (44, 1555840), (52, 1316480), (55, 1244672), (64, 1069640), (65, 1053184), (68, 1006720), (80, 855712), (85, 805376), (88, 777920), (104, 658240), (110, 622336), (121, 565760), (128, 534820), (130, 526592), (136, 503360), (143, 478720), (160, 427856), (170, 402688), (176, 388960), (187, 366080), (208, 329120), (220, 311168), (221, 309760), (242, 282880), (256, 267410), (260, 263296), (272, 251680), (286, 239360), (320, 213928), (340, 201344), (352, 194480), (374, 183040), (416, 164560), (440, 155584), (442, 154880), (484, 141440), (512, 133705), (520, 131648), (544, 125840), (572, 119680), (605, 113152), (640, 106964), (680, 100672), (704, 97240), (715, 95744), (748, 91520), (832, 82280), (880, 77792), (884, 77440), (935, 73216), (968, 70720), (1040, 65824), (1088, 62920), (1105, 61952), (1144, 59840), (1210, 56576), (1280, 53482), (1360, 50336), (1408, 48620), (1430, 47872), (1496, 45760), (1573, 43520), (1664, 41140), (1760, 38896), (1768, 38720), (1870, 36608), (1936, 35360), (2057, 33280), (2080, 32912), (2176, 31460), (2210, 30976), (2288, 29920), (2420, 28288), (2431, 28160), (2560, 26741), (2720, 25168), (2816, 24310), (2860, 23936), (2992, 22880), (3146, 21760), (3328, 20570), (3520, 19448), (3536, 19360), (3740, 18304), (3872, 17680), (4114, 16640), (4160, 16456), (4352, 15730), (4420, 15488), (4576, 14960), (4840, 14144), (4862, 14080), (5440, 12584), (5632, 12155), (5720, 11968), (5984, 11440), (6292, 10880), (6656, 10285), (7040, 9724), (7072, 9680), (7480, 9152), (7744, 8840), (7865, 8704), (8228, 8320)]