206816985

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{661}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 381073680

約数和(自身を除く): 174256695

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 409, 661, 765, 1227, 1983, 2045, 3305, 3681, 5949, 6135, 6953, 9915, 11237, 18405, 20859, 29745, 33711, 34765, 56185, 62577, 101133, 104295, 168555, 270349, 312885, 505665, 811047, 1351745, 2433141, 4055235, 4595933, 12165705, 13787799, 22979665, 41363397, 68938995, 206816985]

約数ペア:

[(1, 206816985), (3, 68938995), (5, 41363397), (9, 22979665), (15, 13787799), (17, 12165705), (45, 4595933), (51, 4055235), (85, 2433141), (153, 1351745), (255, 811047), (409, 505665), (661, 312885), (765, 270349), (1227, 168555), (1983, 104295), (2045, 101133), (3305, 62577), (3681, 56185), (5949, 34765), (6135, 33711), (6953, 29745), (9915, 20859), (11237, 18405)]