28539260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83939}}^1$

素因数の和:83965

約数の個数: 24

約数和(自身を含む): 63458640

約数和(自身を除く): 34919380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83939, 167878, 335756, 419695, 839390, 1426963, 1678780, 2853926, 5707852, 7134815, 14269630, 28539260]

約数ペア:

[(1, 28539260), (2, 14269630), (4, 7134815), (5, 5707852), (10, 2853926), (17, 1678780), (20, 1426963), (34, 839390), (68, 419695), (85, 335756), (170, 167878), (340, 83939)]