20194990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22691}}^1$

素因数の和:22787

約数の個数: 16

約数和(自身を含む): 36761040

約数和(自身を除く): 16566050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22691, 45382, 113455, 226910, 2019499, 4038998, 10097495, 20194990]

約数ペア:

[(1, 20194990), (2, 10097495), (5, 4038998), (10, 2019499), (89, 226910), (178, 113455), (445, 45382), (890, 22691)]