209900428

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{28319}}^1$

素因数の和:28449

約数の個数: 24

約数和(自身を含む): 392515200

約数和(自身を除く): 182614772

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 3706, 7412, 28319, 56638, 113276, 481423, 962846, 1925692, 3086771, 6173542, 12347084, 52475107, 104950214, 209900428]

約数ペア:

[(1, 209900428), (2, 104950214), (4, 52475107), (17, 12347084), (34, 6173542), (68, 3086771), (109, 1925692), (218, 962846), (436, 481423), (1853, 113276), (3706, 56638), (7412, 28319)]