81695840

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3727}}^1$

素因数の和:3879

約数の個数: 48

約数和(自身を含む): 194467392

約数和(自身を除く): 112771552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1370, 2192, 2740, 3727, 4384, 5480, 7454, 10960, 14908, 18635, 21920, 29816, 37270, 59632, 74540, 119264, 149080, 298160, 510599, 596320, 1021198, 2042396, 2552995, 4084792, 5105990, 8169584, 10211980, 16339168, 20423960, 40847920, 81695840]

約数ペア:

[(1, 81695840), (2, 40847920), (4, 20423960), (5, 16339168), (8, 10211980), (10, 8169584), (16, 5105990), (20, 4084792), (32, 2552995), (40, 2042396), (80, 1021198), (137, 596320), (160, 510599), (274, 298160), (548, 149080), (685, 119264), (1096, 74540), (1370, 59632), (2192, 37270), (2740, 29816), (3727, 21920), (4384, 18635), (5480, 14908), (7454, 10960)]