20640810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{688027}}^1$

素因数の和:688037

約数の個数: 16

約数和(自身を含む): 49538016

約数和(自身を除く): 28897206

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 688027, 1376054, 2064081, 3440135, 4128162, 6880270, 10320405, 20640810]

約数ペア:

[(1, 20640810), (2, 10320405), (3, 6880270), (5, 4128162), (6, 3440135), (10, 2064081), (15, 1376054), (30, 688027)]