20940185

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31489}}^1$

素因数の和:31520

約数の個数: 16

約数和(自身を含む): 30230400

約数和(自身を除く): 9290215

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31489, 157445, 220423, 598291, 1102115, 2991455, 4188037, 20940185]

約数ペア:

[(1, 20940185), (5, 4188037), (7, 2991455), (19, 1102115), (35, 598291), (95, 220423), (133, 157445), (665, 31489)]