9820040

素因数分解:

$2^3\times 5^1\times {\mathrm{245501}}^1$

素因数の和:245512

約数の個数: 16

約数和(自身を含む): 22095180

約数和(自身を除く): 12275140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 245501, 491002, 982004, 1227505, 1964008, 2455010, 4910020, 9820040]

約数ペア:

[(1, 9820040), (2, 4910020), (4, 2455010), (5, 1964008), (8, 1227505), (10, 982004), (20, 491002), (40, 245501)]