868040

素因数分解:

$2^3\times 5^1\times {\mathrm{21701}}^1$

素因数の和:21712

約数の個数: 16

約数和(自身を含む): 1953180

約数和(自身を除く): 1085140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21701, 43402, 86804, 108505, 173608, 217010, 434020, 868040]

約数ペア:

[(1, 868040), (2, 434020), (4, 217010), (5, 173608), (8, 108505), (10, 86804), (20, 43402), (40, 21701)]