20239880

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1627}}^1$

素因数の和:1949

約数の個数: 32

約数和(自身を含む): 45714240

約数和(自身を除く): 25474360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 1627, 2488, 3110, 3254, 6220, 6508, 8135, 12440, 13016, 16270, 32540, 65080, 505997, 1011994, 2023988, 2529985, 4047976, 5059970, 10119940, 20239880]

約数ペア:

[(1, 20239880), (2, 10119940), (4, 5059970), (5, 4047976), (8, 2529985), (10, 2023988), (20, 1011994), (40, 505997), (311, 65080), (622, 32540), (1244, 16270), (1555, 13016), (1627, 12440), (2488, 8135), (3110, 6508), (3254, 6220)]