81306778

素因数分解:

$2^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 151776000

約数和(自身を除く): 70469222

約数列:

[1, 2, 7, 14, 29, 49, 58, 61, 67, 98, 122, 134, 203, 343, 406, 427, 469, 686, 854, 938, 1421, 1769, 1943, 2842, 2989, 3283, 3538, 3886, 4087, 5978, 6566, 8174, 9947, 12383, 13601, 19894, 20923, 22981, 24766, 27202, 28609, 41846, 45962, 57218, 86681, 95207, 118523, 173362, 190414, 200263, 237046, 400526, 606767, 666449, 829661, 1213534, 1332898, 1401841, 1659322, 2803682, 5807627, 11615254, 40653389, 81306778]

約数ペア:

[(1, 81306778), (2, 40653389), (7, 11615254), (14, 5807627), (29, 2803682), (49, 1659322), (58, 1401841), (61, 1332898), (67, 1213534), (98, 829661), (122, 666449), (134, 606767), (203, 400526), (343, 237046), (406, 200263), (427, 190414), (469, 173362), (686, 118523), (854, 95207), (938, 86681), (1421, 57218), (1769, 45962), (1943, 41846), (2842, 28609), (2989, 27202), (3283, 24766), (3538, 22981), (3886, 20923), (4087, 19894), (5978, 13601), (6566, 12383), (8174, 9947)]