20464144

素因数分解:

$2^4\times {\mathrm{1039}}^1\times {\mathrm{1231}}^1$

素因数の和:2278

約数の個数: 20

約数和(自身を含む): 39719680

約数和(自身を除く): 19255536

約数列:

[1, 2, 4, 8, 16, 1039, 1231, 2078, 2462, 4156, 4924, 8312, 9848, 16624, 19696, 1279009, 2558018, 5116036, 10232072, 20464144]

約数ペア:

[(1, 20464144), (2, 10232072), (4, 5116036), (8, 2558018), (16, 1279009), (1039, 19696), (1231, 16624), (2078, 9848), (2462, 8312), (4156, 4924)]