7968713020

素因数分解:

$2^2\times 5^1\times {\mathrm{398435651}}^1$

素因数の和:398435660

約数の個数: 12

約数和(自身を含む): 16734297384

約数和(自身を除く): 8765584364

約数列:

[1, 2, 4, 5, 10, 20, 398435651, 796871302, 1593742604, 1992178255, 3984356510, 7968713020]

約数ペア:

[(1, 7968713020), (2, 3984356510), (4, 1992178255), (5, 1593742604), (10, 796871302), (20, 398435651)]