7840780

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1277}}^1$

素因数の和:1593

約数の個数: 24

約数和(自身を含む): 16532208

約数和(自身を除く): 8691428

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1277, 1535, 2554, 3070, 5108, 6140, 6385, 12770, 25540, 392039, 784078, 1568156, 1960195, 3920390, 7840780]

約数ペア:

[(1, 7840780), (2, 3920390), (4, 1960195), (5, 1568156), (10, 784078), (20, 392039), (307, 25540), (614, 12770), (1228, 6385), (1277, 6140), (1535, 5108), (2554, 3070)]