1798660

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 3810240

約数和(自身を除く): 2011580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 647, 695, 1294, 1390, 2588, 2780, 3235, 6470, 12940, 89933, 179866, 359732, 449665, 899330, 1798660]

約数ペア:

[(1, 1798660), (2, 899330), (4, 449665), (5, 359732), (10, 179866), (20, 89933), (139, 12940), (278, 6470), (556, 3235), (647, 2780), (695, 2588), (1294, 1390)]