8045184020

素因数分解:

$2^2\times 5^1\times {\mathrm{402259201}}^1$

素因数の和:402259210

約数の個数: 12

約数和(自身を含む): 16894886484

約数和(自身を除く): 8849702464

約数列:

[1, 2, 4, 5, 10, 20, 402259201, 804518402, 1609036804, 2011296005, 4022592010, 8045184020]

約数ペア:

[(1, 8045184020), (2, 4022592010), (4, 2011296005), (5, 1609036804), (10, 804518402), (20, 402259201)]