26838820

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2087}}^1$

素因数の和:2739

約数の個数: 24

約数和(自身を含む): 56476224

約数和(自身を除く): 29637404

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2087, 2572, 3215, 4174, 6430, 8348, 10435, 12860, 20870, 41740, 1341941, 2683882, 5367764, 6709705, 13419410, 26838820]

約数ペア:

[(1, 26838820), (2, 13419410), (4, 6709705), (5, 5367764), (10, 2683882), (20, 1341941), (643, 41740), (1286, 20870), (2087, 12860), (2572, 10435), (3215, 8348), (4174, 6430)]