2009282020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{54217}}^1$

素因数の和:54352

約数の個数: 48

約数和(自身を含む): 4508768880

約数和(自身を除く): 2499486860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3706, 7412, 9265, 18530, 37060, 54217, 108434, 216868, 271085, 542170, 921689, 1084340, 1843378, 3686756, 4608445, 5909653, 9216890, 11819306, 18433780, 23638612, 29548265, 59096530, 100464101, 118193060, 200928202, 401856404, 502320505, 1004641010, 2009282020]

約数ペア:

[(1, 2009282020), (2, 1004641010), (4, 502320505), (5, 401856404), (10, 200928202), (17, 118193060), (20, 100464101), (34, 59096530), (68, 29548265), (85, 23638612), (109, 18433780), (170, 11819306), (218, 9216890), (340, 5909653), (436, 4608445), (545, 3686756), (1090, 1843378), (1853, 1084340), (2180, 921689), (3706, 542170), (7412, 271085), (9265, 216868), (18530, 108434), (37060, 54217)]