81967578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^2$

素因数の和:288

約数の個数: 72

約数和(自身を含む): 207569376

約数和(自身を除く): 125601798

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 121, 127, 154, 231, 242, 254, 363, 381, 462, 726, 762, 847, 889, 1397, 1694, 1778, 2541, 2667, 2794, 4191, 5082, 5334, 8382, 9779, 15367, 16129, 19558, 29337, 30734, 32258, 46101, 48387, 58674, 92202, 96774, 107569, 112903, 177419, 215138, 225806, 322707, 338709, 354838, 532257, 645414, 677418, 1064514, 1241933, 1951609, 2483866, 3725799, 3903218, 5854827, 7451598, 11709654, 13661263, 27322526, 40983789, 81967578]

約数ペア:

[(1, 81967578), (2, 40983789), (3, 27322526), (6, 13661263), (7, 11709654), (11, 7451598), (14, 5854827), (21, 3903218), (22, 3725799), (33, 2483866), (42, 1951609), (66, 1241933), (77, 1064514), (121, 677418), (127, 645414), (154, 532257), (231, 354838), (242, 338709), (254, 322707), (363, 225806), (381, 215138), (462, 177419), (726, 112903), (762, 107569), (847, 96774), (889, 92202), (1397, 58674), (1694, 48387), (1778, 46101), (2541, 32258), (2667, 30734), (2794, 29337), (4191, 19558), (5082, 16129), (5334, 15367), (8382, 9779)]