19407520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11027}}^1$

素因数の和:11053

約数の個数: 48

約数和(自身を含む): 50023008

約数和(自身を除く): 30615488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11027, 22054, 44108, 55135, 88216, 110270, 121297, 176432, 220540, 242594, 352864, 441080, 485188, 606485, 882160, 970376, 1212970, 1764320, 1940752, 2425940, 3881504, 4851880, 9703760, 19407520]

約数ペア:

[(1, 19407520), (2, 9703760), (4, 4851880), (5, 3881504), (8, 2425940), (10, 1940752), (11, 1764320), (16, 1212970), (20, 970376), (22, 882160), (32, 606485), (40, 485188), (44, 441080), (55, 352864), (80, 242594), (88, 220540), (110, 176432), (160, 121297), (176, 110270), (220, 88216), (352, 55135), (440, 44108), (880, 22054), (1760, 11027)]