18312020

素因数分解:

$2^2\times 5^1\times {\mathrm{915601}}^1$

素因数の和:915610

約数の個数: 12

約数和(自身を含む): 38455284

約数和(自身を除く): 20143264

約数列:

[1, 2, 4, 5, 10, 20, 915601, 1831202, 3662404, 4578005, 9156010, 18312020]

約数ペア:

[(1, 18312020), (2, 9156010), (4, 4578005), (5, 3662404), (10, 1831202), (20, 915601)]