20379130

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28703}}^1$

素因数の和:28781

約数の個数: 16

約数和(自身を含む): 37200384

約数和(自身を除く): 16821254

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28703, 57406, 143515, 287030, 2037913, 4075826, 10189565, 20379130]

約数ペア:

[(1, 20379130), (2, 10189565), (5, 4075826), (10, 2037913), (71, 287030), (142, 143515), (355, 57406), (710, 28703)]