81865168

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{66449}}^1$

素因数の和:66475

約数の個数: 40

約数和(自身を含む): 197755200

約数和(自身を除く): 115890032

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 66449, 132898, 265796, 465143, 531592, 730939, 930286, 1063184, 1461878, 1860572, 2923756, 3721144, 5116573, 5847512, 7442288, 10233146, 11695024, 20466292, 40932584, 81865168]

約数ペア:

[(1, 81865168), (2, 40932584), (4, 20466292), (7, 11695024), (8, 10233146), (11, 7442288), (14, 5847512), (16, 5116573), (22, 3721144), (28, 2923756), (44, 1860572), (56, 1461878), (77, 1063184), (88, 930286), (112, 730939), (154, 531592), (176, 465143), (308, 265796), (616, 132898), (1232, 66449)]