28199260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82939}}^1$

素因数の和:82965

約数の個数: 24

約数和(自身を含む): 62702640

約数和(自身を除く): 34503380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82939, 165878, 331756, 414695, 829390, 1409963, 1658780, 2819926, 5639852, 7049815, 14099630, 28199260]

約数ペア:

[(1, 28199260), (2, 14099630), (4, 7049815), (5, 5639852), (10, 2819926), (17, 1658780), (20, 1409963), (34, 829390), (68, 414695), (85, 331756), (170, 165878), (340, 82939)]