280855419

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^2$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 442679328

約数和(自身を除く): 161823909

約数列:

[1, 3, 13, 17, 37, 39, 51, 107, 111, 221, 321, 481, 629, 663, 1391, 1443, 1819, 1887, 3959, 4173, 5457, 8177, 11449, 11877, 23647, 24531, 34347, 51467, 67303, 70941, 148837, 154401, 194633, 201909, 423613, 446511, 583899, 874939, 1270839, 2530229, 2624817, 5506969, 7201421, 7590687, 16520907, 21604263, 93618473, 280855419]

約数ペア:

[(1, 280855419), (3, 93618473), (13, 21604263), (17, 16520907), (37, 7590687), (39, 7201421), (51, 5506969), (107, 2624817), (111, 2530229), (221, 1270839), (321, 874939), (481, 583899), (629, 446511), (663, 423613), (1391, 201909), (1443, 194633), (1819, 154401), (1887, 148837), (3959, 70941), (4173, 67303), (5457, 51467), (8177, 34347), (11449, 24531), (11877, 23647)]