20340955

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 24920064

約数和(自身を除く): 4579109

約数列:

[1, 5, 103, 127, 311, 515, 635, 1555, 13081, 32033, 39497, 65405, 160165, 197485, 4068191, 20340955]

約数ペア:

[(1, 20340955), (5, 4068191), (103, 197485), (127, 160165), (311, 65405), (515, 39497), (635, 32033), (1555, 13081)]