20403710

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18719}}^1$

素因数の和:18835

約数の個数: 16

約数和(自身を含む): 37065600

約数和(自身を除く): 16661890

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18719, 37438, 93595, 187190, 2040371, 4080742, 10201855, 20403710]

約数ペア:

[(1, 20403710), (2, 10201855), (5, 4080742), (10, 2040371), (109, 187190), (218, 93595), (545, 37438), (1090, 18719)]