26489720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15401}}^1$

素因数の和:15455

約数の個数: 32

約数和(自身を含む): 60991920

約数和(自身を除く): 34502200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 15401, 30802, 61604, 77005, 123208, 154010, 308020, 616040, 662243, 1324486, 2648972, 3311215, 5297944, 6622430, 13244860, 26489720]

約数ペア:

[(1, 26489720), (2, 13244860), (4, 6622430), (5, 5297944), (8, 3311215), (10, 2648972), (20, 1324486), (40, 662243), (43, 616040), (86, 308020), (172, 154010), (215, 123208), (344, 77005), (430, 61604), (860, 30802), (1720, 15401)]