81668432

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{19861}}^1$

素因数の和:20126

約数の個数: 20

約数和(自身を含む): 158856276

約数和(自身を除く): 77187844

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 19861, 39722, 79444, 158888, 317776, 5104277, 10208554, 20417108, 40834216, 81668432]

約数ペア:

[(1, 81668432), (2, 40834216), (4, 20417108), (8, 10208554), (16, 5104277), (257, 317776), (514, 158888), (1028, 79444), (2056, 39722), (4112, 19861)]