81020254

素因数分解:

$2^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{12889}}^1$

素因数の和:13347

約数の個数: 16

約数和(自身を含む): 139212000

約数和(自身を除く): 58191746

約数列:

[1, 2, 7, 14, 449, 898, 3143, 6286, 12889, 25778, 90223, 180446, 5787161, 11574322, 40510127, 81020254]

約数ペア:

[(1, 81020254), (2, 40510127), (7, 11574322), (14, 5787161), (449, 180446), (898, 90223), (3143, 25778), (6286, 12889)]