26864540

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2089}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 56530320

約数和(自身を除く): 29665780

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2089, 2572, 3215, 4178, 6430, 8356, 10445, 12860, 20890, 41780, 1343227, 2686454, 5372908, 6716135, 13432270, 26864540]

約数ペア:

[(1, 26864540), (2, 13432270), (4, 6716135), (5, 5372908), (10, 2686454), (20, 1343227), (643, 41780), (1286, 20890), (2089, 12860), (2572, 10445), (3215, 8356), (4178, 6430)]