178102719

素因数分解:

$3^7\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 287170560

約数和(自身を除く): 109067841

約数列:

[1, 3, 9, 27, 31, 37, 71, 81, 93, 111, 213, 243, 279, 333, 639, 729, 837, 999, 1147, 1917, 2187, 2201, 2511, 2627, 2997, 3441, 5751, 6603, 7533, 7881, 8991, 10323, 17253, 19809, 22599, 23643, 26973, 30969, 51759, 59427, 67797, 70929, 80919, 81437, 92907, 155277, 178281, 212787, 244311, 278721, 534843, 638361, 732933, 836163, 1604529, 1915083, 2198799, 2508489, 4813587, 5745249, 6596397, 19789191, 59367573, 178102719]

約数ペア:

[(1, 178102719), (3, 59367573), (9, 19789191), (27, 6596397), (31, 5745249), (37, 4813587), (71, 2508489), (81, 2198799), (93, 1915083), (111, 1604529), (213, 836163), (243, 732933), (279, 638361), (333, 534843), (639, 278721), (729, 244311), (837, 212787), (999, 178281), (1147, 155277), (1917, 92907), (2187, 81437), (2201, 80919), (2511, 70929), (2627, 67797), (2997, 59427), (3441, 51759), (5751, 30969), (6603, 26973), (7533, 23643), (7881, 22599), (8991, 19809), (10323, 17253)]