15996765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 28365120

約数和(自身を除く): 12368355

約数列:

[1, 3, 5, 15, 19, 37, 41, 57, 95, 111, 123, 185, 205, 285, 555, 615, 703, 779, 1369, 1517, 2109, 2337, 3515, 3895, 4107, 4551, 6845, 7585, 10545, 11685, 20535, 22755, 26011, 28823, 56129, 78033, 86469, 130055, 144115, 168387, 280645, 390165, 432345, 841935, 1066451, 3199353, 5332255, 15996765]

約数ペア:

[(1, 15996765), (3, 5332255), (5, 3199353), (15, 1066451), (19, 841935), (37, 432345), (41, 390165), (57, 280645), (95, 168387), (111, 144115), (123, 130055), (185, 86469), (205, 78033), (285, 56129), (555, 28823), (615, 26011), (703, 22755), (779, 20535), (1369, 11685), (1517, 10545), (2109, 7585), (2337, 6845), (3515, 4551), (3895, 4107)]