20068245

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{709}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 37879920

約数和(自身を除く): 17811675

約数列:

[1, 3, 5, 9, 15, 17, 37, 45, 51, 85, 111, 153, 185, 255, 333, 555, 629, 709, 765, 1665, 1887, 2127, 3145, 3545, 5661, 6381, 9435, 10635, 12053, 26233, 28305, 31905, 36159, 60265, 78699, 108477, 131165, 180795, 236097, 393495, 445961, 542385, 1180485, 1337883, 2229805, 4013649, 6689415, 20068245]

約数ペア:

[(1, 20068245), (3, 6689415), (5, 4013649), (9, 2229805), (15, 1337883), (17, 1180485), (37, 542385), (45, 445961), (51, 393495), (85, 236097), (111, 180795), (153, 131165), (185, 108477), (255, 78699), (333, 60265), (555, 36159), (629, 31905), (709, 28305), (765, 26233), (1665, 12053), (1887, 10635), (2127, 9435), (3145, 6381), (3545, 5661)]