13338980

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1009}}^1$

素因数の和:1679

約数の個数: 24

約数和(自身を含む): 28082040

約数和(自身を除く): 14743060

約数列:

[1, 2, 4, 5, 10, 20, 661, 1009, 1322, 2018, 2644, 3305, 4036, 5045, 6610, 10090, 13220, 20180, 666949, 1333898, 2667796, 3334745, 6669490, 13338980]

約数ペア:

[(1, 13338980), (2, 6669490), (4, 3334745), (5, 2667796), (10, 1333898), (20, 666949), (661, 20180), (1009, 13220), (1322, 10090), (2018, 6610), (2644, 5045), (3305, 4036)]