86977640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19949}}^1$

素因数の和:20069

約数の個数: 32

約数和(自身を含む): 197505000

約数和(自身を除く): 110527360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 19949, 39898, 79796, 99745, 159592, 199490, 398980, 797960, 2174441, 4348882, 8697764, 10872205, 17395528, 21744410, 43488820, 86977640]

約数ペア:

[(1, 86977640), (2, 43488820), (4, 21744410), (5, 17395528), (8, 10872205), (10, 8697764), (20, 4348882), (40, 2174441), (109, 797960), (218, 398980), (436, 199490), (545, 159592), (872, 99745), (1090, 79796), (2180, 39898), (4360, 19949)]