81100474

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 161280000

約数和(自身を除く): 80179526

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 47, 91, 94, 133, 182, 247, 266, 329, 494, 499, 611, 658, 893, 998, 1222, 1729, 1786, 3458, 3493, 4277, 6251, 6487, 6986, 8554, 9481, 11609, 12502, 12974, 18962, 23218, 23453, 45409, 46906, 66367, 81263, 90818, 123253, 132734, 162526, 164171, 246506, 304889, 328342, 445607, 609778, 862771, 891214, 1725542, 2134223, 3119249, 4268446, 5792891, 6238498, 11585782, 40550237, 81100474]

約数ペア:

[(1, 81100474), (2, 40550237), (7, 11585782), (13, 6238498), (14, 5792891), (19, 4268446), (26, 3119249), (38, 2134223), (47, 1725542), (91, 891214), (94, 862771), (133, 609778), (182, 445607), (247, 328342), (266, 304889), (329, 246506), (494, 164171), (499, 162526), (611, 132734), (658, 123253), (893, 90818), (998, 81263), (1222, 66367), (1729, 46906), (1786, 45409), (3458, 23453), (3493, 23218), (4277, 18962), (6251, 12974), (6487, 12502), (6986, 11609), (8554, 9481)]