7720540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5437}}^1$

素因数の和:5517

約数の個数: 24

約数和(自身を含む): 16444512

約数和(自身を除く): 8723972

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 5437, 10874, 21748, 27185, 54370, 108740, 386027, 772054, 1544108, 1930135, 3860270, 7720540]

約数ペア:

[(1, 7720540), (2, 3860270), (4, 1930135), (5, 1544108), (10, 772054), (20, 386027), (71, 108740), (142, 54370), (284, 27185), (355, 21748), (710, 10874), (1420, 5437)]