20728030

素因数分解:

$2^1\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{1523}}^1$

素因数の和:2891

約数の個数: 16

約数和(自身を含む): 37362384

約数和(自身を除く): 16634354

約数列:

[1, 2, 5, 10, 1361, 1523, 2722, 3046, 6805, 7615, 13610, 15230, 2072803, 4145606, 10364015, 20728030]

約数ペア:

[(1, 20728030), (2, 10364015), (5, 4145606), (10, 2072803), (1361, 15230), (1523, 13610), (2722, 7615), (3046, 6805)]