6780140

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1289}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 14303520

約数和(自身を除く): 7523380

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1289, 1315, 2578, 2630, 5156, 5260, 6445, 12890, 25780, 339007, 678014, 1356028, 1695035, 3390070, 6780140]

約数ペア:

[(1, 6780140), (2, 3390070), (4, 1695035), (5, 1356028), (10, 678014), (20, 339007), (263, 25780), (526, 12890), (1052, 6445), (1289, 5260), (1315, 5156), (2578, 2630)]