855980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 1817088

約数和(自身を除く): 961108

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 337, 508, 635, 674, 1270, 1348, 1685, 2540, 3370, 6740, 42799, 85598, 171196, 213995, 427990, 855980]

約数ペア:

[(1, 855980), (2, 427990), (4, 213995), (5, 171196), (10, 85598), (20, 42799), (127, 6740), (254, 3370), (337, 2540), (508, 1685), (635, 1348), (674, 1270)]