85871765

素因数分解:

$5^1\times 7^4\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 125843328

約数和(自身を除く): 39971563

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 311, 343, 805, 1127, 1555, 1715, 2177, 2401, 5635, 7153, 7889, 10885, 12005, 15239, 35765, 39445, 50071, 55223, 76195, 106673, 250355, 276115, 350497, 533365, 746711, 1752485, 2453479, 3733555, 12267395, 17174353, 85871765]

約数ペア:

[(1, 85871765), (5, 17174353), (7, 12267395), (23, 3733555), (35, 2453479), (49, 1752485), (115, 746711), (161, 533365), (245, 350497), (311, 276115), (343, 250355), (805, 106673), (1127, 76195), (1555, 55223), (1715, 50071), (2177, 39445), (2401, 35765), (5635, 15239), (7153, 12005), (7889, 10885)]