2764040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1661

約数の個数: 32

約数和(自身を含む): 6367680

約数和(自身を除く): 3603640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1607, 1720, 3214, 6428, 8035, 12856, 16070, 32140, 64280, 69101, 138202, 276404, 345505, 552808, 691010, 1382020, 2764040]

約数ペア:

[(1, 2764040), (2, 1382020), (4, 691010), (5, 552808), (8, 345505), (10, 276404), (20, 138202), (40, 69101), (43, 64280), (86, 32140), (172, 16070), (215, 12856), (344, 8035), (430, 6428), (860, 3214), (1607, 1720)]