20161211420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144008653}}^1$

素因数の和:144008669

約数の個数: 24

約数和(自身を含む): 48386907744

約数和(自身を除く): 28225696324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144008653, 288017306, 576034612, 720043265, 1008060571, 1440086530, 2016121142, 2880173060, 4032242284, 5040302855, 10080605710, 20161211420]

約数ペア:

[(1, 20161211420), (2, 10080605710), (4, 5040302855), (5, 4032242284), (7, 2880173060), (10, 2016121142), (14, 1440086530), (20, 1008060571), (28, 720043265), (35, 576034612), (70, 288017306), (140, 144008653)]