20734540

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4649}}^1$

素因数の和:4881

約数の個数: 24

約数和(自身を含む): 43747200

約数和(自身を除く): 23012660

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 4649, 9298, 18596, 23245, 46490, 92980, 1036727, 2073454, 4146908, 5183635, 10367270, 20734540]

約数ペア:

[(1, 20734540), (2, 10367270), (4, 5183635), (5, 4146908), (10, 2073454), (20, 1036727), (223, 92980), (446, 46490), (892, 23245), (1115, 18596), (2230, 9298), (4460, 4649)]