20867420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149053}}^1$

素因数の和:149069

約数の個数: 24

約数和(自身を含む): 50082144

約数和(自身を除く): 29214724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149053, 298106, 596212, 745265, 1043371, 1490530, 2086742, 2981060, 4173484, 5216855, 10433710, 20867420]

約数ペア:

[(1, 20867420), (2, 10433710), (4, 5216855), (5, 4173484), (7, 2981060), (10, 2086742), (14, 1490530), (20, 1043371), (28, 745265), (35, 596212), (70, 298106), (140, 149053)]