78821540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563011}}^1$

素因数の和:563027

約数の個数: 24

約数和(自身を含む): 189172032

約数和(自身を除く): 110350492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563011, 1126022, 2252044, 2815055, 3941077, 5630110, 7882154, 11260220, 15764308, 19705385, 39410770, 78821540]

約数ペア:

[(1, 78821540), (2, 39410770), (4, 19705385), (5, 15764308), (7, 11260220), (10, 7882154), (14, 5630110), (20, 3941077), (28, 2815055), (35, 2252044), (70, 1126022), (140, 563011)]