81721856

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 80

約数和(自身を含む): 177879240

約数和(自身を除く): 96157384

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 64, 68, 82, 128, 136, 164, 229, 256, 272, 328, 458, 512, 544, 656, 697, 916, 1088, 1312, 1394, 1832, 2176, 2624, 2788, 3664, 3893, 4352, 5248, 5576, 7328, 7786, 8704, 9389, 10496, 11152, 14656, 15572, 18778, 20992, 22304, 29312, 31144, 37556, 44608, 58624, 62288, 75112, 89216, 117248, 124576, 150224, 159613, 178432, 249152, 300448, 319226, 356864, 498304, 600896, 638452, 996608, 1201792, 1276904, 1993216, 2403584, 2553808, 4807168, 5107616, 10215232, 20430464, 40860928, 81721856]

約数ペア:

[(1, 81721856), (2, 40860928), (4, 20430464), (8, 10215232), (16, 5107616), (17, 4807168), (32, 2553808), (34, 2403584), (41, 1993216), (64, 1276904), (68, 1201792), (82, 996608), (128, 638452), (136, 600896), (164, 498304), (229, 356864), (256, 319226), (272, 300448), (328, 249152), (458, 178432), (512, 159613), (544, 150224), (656, 124576), (697, 117248), (916, 89216), (1088, 75112), (1312, 62288), (1394, 58624), (1832, 44608), (2176, 37556), (2624, 31144), (2788, 29312), (3664, 22304), (3893, 20992), (4352, 18778), (5248, 15572), (5576, 14656), (7328, 11152), (7786, 10496), (8704, 9389)]