256467712

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1965

約数の個数: 72

約数和(自身を含む): 559827072

約数和(自身を除く): 303359360

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 248, 256, 272, 496, 527, 544, 992, 1054, 1088, 1901, 1984, 2108, 2176, 3802, 3968, 4216, 4352, 7604, 7936, 8432, 15208, 16864, 30416, 32317, 33728, 58931, 60832, 64634, 67456, 117862, 121664, 129268, 134912, 235724, 243328, 258536, 471448, 486656, 517072, 942896, 1001827, 1034144, 1885792, 2003654, 2068288, 3771584, 4007308, 4136576, 7543168, 8014616, 8273152, 15086336, 16029232, 32058464, 64116928, 128233856, 256467712]

約数ペア:

[(1, 256467712), (2, 128233856), (4, 64116928), (8, 32058464), (16, 16029232), (17, 15086336), (31, 8273152), (32, 8014616), (34, 7543168), (62, 4136576), (64, 4007308), (68, 3771584), (124, 2068288), (128, 2003654), (136, 1885792), (248, 1034144), (256, 1001827), (272, 942896), (496, 517072), (527, 486656), (544, 471448), (992, 258536), (1054, 243328), (1088, 235724), (1901, 134912), (1984, 129268), (2108, 121664), (2176, 117862), (3802, 67456), (3968, 64634), (4216, 60832), (4352, 58931), (7604, 33728), (7936, 32317), (8432, 30416), (15208, 16864)]