8404040

素因数分解:

$2^3\times 5^1\times {\mathrm{210101}}^1$

素因数の和:210112

約数の個数: 16

約数和(自身を含む): 18909180

約数和(自身を除く): 10505140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 210101, 420202, 840404, 1050505, 1680808, 2101010, 4202020, 8404040]

約数ペア:

[(1, 8404040), (2, 4202020), (4, 2101010), (5, 1680808), (8, 1050505), (10, 840404), (20, 420202), (40, 210101)]