20420340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{340339}}^1$

素因数の和:340351

約数の個数: 24

約数和(自身を含む): 57177120

約数和(自身を除く): 36756780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 340339, 680678, 1021017, 1361356, 1701695, 2042034, 3403390, 4084068, 5105085, 6806780, 10210170, 20420340]

約数ペア:

[(1, 20420340), (2, 10210170), (3, 6806780), (4, 5105085), (5, 4084068), (6, 3403390), (10, 2042034), (12, 1701695), (15, 1361356), (20, 1021017), (30, 680678), (60, 340339)]