285992020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{7717}}^1$

素因数の和:7852

約数の個数: 48

約数和(自身を含む): 641828880

約数和(自身を除く): 355836860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3706, 7412, 7717, 9265, 15434, 18530, 30868, 37060, 38585, 77170, 131189, 154340, 262378, 524756, 655945, 841153, 1311890, 1682306, 2623780, 3364612, 4205765, 8411530, 14299601, 16823060, 28599202, 57198404, 71498005, 142996010, 285992020]

約数ペア:

[(1, 285992020), (2, 142996010), (4, 71498005), (5, 57198404), (10, 28599202), (17, 16823060), (20, 14299601), (34, 8411530), (68, 4205765), (85, 3364612), (109, 2623780), (170, 1682306), (218, 1311890), (340, 841153), (436, 655945), (545, 524756), (1090, 262378), (1853, 154340), (2180, 131189), (3706, 77170), (7412, 38585), (7717, 37060), (9265, 30868), (15434, 18530)]