81360482

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{20249}}^1$

素因数の和:20306

約数の個数: 24

約数和(自身を含む): 145435500

約数和(自身を除く): 64075018

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 20249, 40498, 141743, 283486, 830209, 992201, 1660418, 1984402, 5811463, 11622926, 40680241, 81360482]

約数ペア:

[(1, 81360482), (2, 40680241), (7, 11622926), (14, 5811463), (41, 1984402), (49, 1660418), (82, 992201), (98, 830209), (287, 283486), (574, 141743), (2009, 40498), (4018, 20249)]