81562142

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{6823}}^1$

素因数の和:7007

約数の個数: 16

約数和(自身を含む): 126107520

約数和(自身を除く): 44545378

約数列:

[1, 2, 43, 86, 139, 278, 5977, 6823, 11954, 13646, 293389, 586778, 948397, 1896794, 40781071, 81562142]

約数ペア:

[(1, 81562142), (2, 40781071), (43, 1896794), (86, 948397), (139, 586778), (278, 293389), (5977, 13646), (6823, 11954)]