81318208

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2411}}^1$

素因数の和:2471

約数の個数: 56

約数和(自身を含む): 176442624

約数和(自身を除く): 95124416

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 1088, 1984, 2108, 2411, 4216, 4822, 8432, 9644, 16864, 19288, 33728, 38576, 40987, 74741, 77152, 81974, 149482, 154304, 163948, 298964, 327896, 597928, 655792, 1195856, 1270597, 1311584, 2391712, 2541194, 2623168, 4783424, 5082388, 10164776, 20329552, 40659104, 81318208]

約数ペア:

[(1, 81318208), (2, 40659104), (4, 20329552), (8, 10164776), (16, 5082388), (17, 4783424), (31, 2623168), (32, 2541194), (34, 2391712), (62, 1311584), (64, 1270597), (68, 1195856), (124, 655792), (136, 597928), (248, 327896), (272, 298964), (496, 163948), (527, 154304), (544, 149482), (992, 81974), (1054, 77152), (1088, 74741), (1984, 40987), (2108, 38576), (2411, 33728), (4216, 19288), (4822, 16864), (8432, 9644)]