84742520

素因数分解:

$2^3\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{1949}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 190944000

約数和(自身を除く): 106201480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1087, 1949, 2174, 3898, 4348, 5435, 7796, 8696, 9745, 10870, 15592, 19490, 21740, 38980, 43480, 77960, 2118563, 4237126, 8474252, 10592815, 16948504, 21185630, 42371260, 84742520]

約数ペア:

[(1, 84742520), (2, 42371260), (4, 21185630), (5, 16948504), (8, 10592815), (10, 8474252), (20, 4237126), (40, 2118563), (1087, 77960), (1949, 43480), (2174, 38980), (3898, 21740), (4348, 19490), (5435, 15592), (7796, 10870), (8696, 9745)]