30404440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 76412160

約数和(自身を除く): 46007720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1607, 1720, 1892, 2365, 3214, 3784, 4730, 6428, 8035, 9460, 12856, 16070, 17677, 18920, 32140, 35354, 64280, 69101, 70708, 88385, 138202, 141416, 176770, 276404, 345505, 353540, 552808, 691010, 707080, 760111, 1382020, 1520222, 2764040, 3040444, 3800555, 6080888, 7601110, 15202220, 30404440]

約数ペア:

[(1, 30404440), (2, 15202220), (4, 7601110), (5, 6080888), (8, 3800555), (10, 3040444), (11, 2764040), (20, 1520222), (22, 1382020), (40, 760111), (43, 707080), (44, 691010), (55, 552808), (86, 353540), (88, 345505), (110, 276404), (172, 176770), (215, 141416), (220, 138202), (344, 88385), (430, 70708), (440, 69101), (473, 64280), (860, 35354), (946, 32140), (1607, 18920), (1720, 17677), (1892, 16070), (2365, 12856), (3214, 9460), (3784, 8035), (4730, 6428)]