81819368

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{823}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 166958880

約数和(自身を除く): 85139512

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 289, 344, 578, 731, 823, 1156, 1462, 1646, 2312, 2924, 3292, 5848, 6584, 12427, 13991, 24854, 27982, 35389, 49708, 55964, 70778, 99416, 111928, 141556, 237847, 283112, 475694, 601613, 951388, 1203226, 1902776, 2406452, 4812904, 10227421, 20454842, 40909684, 81819368]

約数ペア:

[(1, 81819368), (2, 40909684), (4, 20454842), (8, 10227421), (17, 4812904), (34, 2406452), (43, 1902776), (68, 1203226), (86, 951388), (136, 601613), (172, 475694), (289, 283112), (344, 237847), (578, 141556), (731, 111928), (823, 99416), (1156, 70778), (1462, 55964), (1646, 49708), (2312, 35389), (2924, 27982), (3292, 24854), (5848, 13991), (6584, 12427)]