25765580

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2531}}^1$

素因数の和:3049

約数の個数: 24

約数和(自身を含む): 54235440

約数和(自身を除く): 28469860

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2531, 2545, 5062, 5090, 10124, 10180, 12655, 25310, 50620, 1288279, 2576558, 5153116, 6441395, 12882790, 25765580]

約数ペア:

[(1, 25765580), (2, 12882790), (4, 6441395), (5, 5153116), (10, 2576558), (20, 1288279), (509, 50620), (1018, 25310), (2036, 12655), (2531, 10180), (2545, 10124), (5062, 5090)]