205121728

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1230

約数の個数: 112

約数和(自身を含む): 514404864

約数和(自身を除く): 309283136

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 23, 28, 32, 34, 46, 56, 64, 68, 92, 112, 119, 136, 161, 184, 224, 238, 272, 322, 368, 391, 448, 476, 544, 644, 736, 782, 952, 1088, 1171, 1288, 1472, 1564, 1904, 2342, 2576, 2737, 3128, 3808, 4684, 5152, 5474, 6256, 7616, 8197, 9368, 10304, 10948, 12512, 16394, 18736, 19907, 21896, 25024, 26933, 32788, 37472, 39814, 43792, 53866, 65576, 74944, 79628, 87584, 107732, 131152, 139349, 159256, 175168, 188531, 215464, 262304, 278698, 318512, 377062, 430928, 457861, 524608, 557396, 637024, 754124, 861856, 915722, 1114792, 1274048, 1508248, 1723712, 1831444, 2229584, 3016496, 3205027, 3662888, 4459168, 6032992, 6410054, 7325776, 8918336, 12065984, 12820108, 14651552, 25640216, 29303104, 51280432, 102560864, 205121728]

約数ペア:

[(1, 205121728), (2, 102560864), (4, 51280432), (7, 29303104), (8, 25640216), (14, 14651552), (16, 12820108), (17, 12065984), (23, 8918336), (28, 7325776), (32, 6410054), (34, 6032992), (46, 4459168), (56, 3662888), (64, 3205027), (68, 3016496), (92, 2229584), (112, 1831444), (119, 1723712), (136, 1508248), (161, 1274048), (184, 1114792), (224, 915722), (238, 861856), (272, 754124), (322, 637024), (368, 557396), (391, 524608), (448, 457861), (476, 430928), (544, 377062), (644, 318512), (736, 278698), (782, 262304), (952, 215464), (1088, 188531), (1171, 175168), (1288, 159256), (1472, 139349), (1564, 131152), (1904, 107732), (2342, 87584), (2576, 79628), (2737, 74944), (3128, 65576), (3808, 53866), (4684, 43792), (5152, 39814), (5474, 37472), (6256, 32788), (7616, 26933), (8197, 25024), (9368, 21896), (10304, 19907), (10948, 18736), (12512, 16394)]