66115760

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4153}}^1$

素因数の和:4365

約数の個数: 40

約数和(自身を含む): 154528800

約数和(自身を除く): 88413040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 4153, 7960, 8306, 15920, 16612, 20765, 33224, 41530, 66448, 83060, 166120, 332240, 826447, 1652894, 3305788, 4132235, 6611576, 8264470, 13223152, 16528940, 33057880, 66115760]

約数ペア:

[(1, 66115760), (2, 33057880), (4, 16528940), (5, 13223152), (8, 8264470), (10, 6611576), (16, 4132235), (20, 3305788), (40, 1652894), (80, 826447), (199, 332240), (398, 166120), (796, 83060), (995, 66448), (1592, 41530), (1990, 33224), (3184, 20765), (3980, 16612), (4153, 15920), (7960, 8306)]