19404680

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3541}}^1$

素因数の和:3689

約数の個数: 32

約数和(自身を含む): 43991640

約数和(自身を除く): 24586960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3541, 5480, 7082, 14164, 17705, 28328, 35410, 70820, 141640, 485117, 970234, 1940468, 2425585, 3880936, 4851170, 9702340, 19404680]

約数ペア:

[(1, 19404680), (2, 9702340), (4, 4851170), (5, 3880936), (8, 2425585), (10, 1940468), (20, 970234), (40, 485117), (137, 141640), (274, 70820), (548, 35410), (685, 28328), (1096, 17705), (1370, 14164), (2740, 7082), (3541, 5480)]