81509176

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 179988480

約数和(自身を除く): 98479304

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 107, 122, 214, 223, 244, 427, 428, 446, 488, 749, 854, 856, 892, 1498, 1561, 1708, 1784, 2996, 3122, 3416, 5992, 6244, 6527, 12488, 13054, 13603, 23861, 26108, 27206, 45689, 47722, 52216, 54412, 91378, 95221, 95444, 108824, 167027, 182756, 190442, 190888, 334054, 365512, 380884, 668108, 761768, 1336216, 1455521, 2911042, 5822084, 10188647, 11644168, 20377294, 40754588, 81509176]

約数ペア:

[(1, 81509176), (2, 40754588), (4, 20377294), (7, 11644168), (8, 10188647), (14, 5822084), (28, 2911042), (56, 1455521), (61, 1336216), (107, 761768), (122, 668108), (214, 380884), (223, 365512), (244, 334054), (427, 190888), (428, 190442), (446, 182756), (488, 167027), (749, 108824), (854, 95444), (856, 95221), (892, 91378), (1498, 54412), (1561, 52216), (1708, 47722), (1784, 45689), (2996, 27206), (3122, 26108), (3416, 23861), (5992, 13603), (6244, 13054), (6527, 12488)]