12785660

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1811}}^1$

素因数の和:2173

約数の個数: 24

約数和(自身を含む): 26940816

約数和(自身を除く): 14155156

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 1811, 3530, 3622, 7060, 7244, 9055, 18110, 36220, 639283, 1278566, 2557132, 3196415, 6392830, 12785660]

約数ペア:

[(1, 12785660), (2, 6392830), (4, 3196415), (5, 2557132), (10, 1278566), (20, 639283), (353, 36220), (706, 18110), (1412, 9055), (1765, 7244), (1811, 7060), (3530, 3622)]