25938620

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2017}}^1$

素因数の和:2669

約数の個数: 24

約数和(自身を含む): 54582864

約数和(自身を除く): 28644244

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2017, 2572, 3215, 4034, 6430, 8068, 10085, 12860, 20170, 40340, 1296931, 2593862, 5187724, 6484655, 12969310, 25938620]

約数ペア:

[(1, 25938620), (2, 12969310), (4, 6484655), (5, 5187724), (10, 2593862), (20, 1296931), (643, 40340), (1286, 20170), (2017, 12860), (2572, 10085), (3215, 8068), (4034, 6430)]