2646680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 6013440

約数和(自身を除く): 3366760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 521, 635, 1016, 1042, 1270, 2084, 2540, 2605, 4168, 5080, 5210, 10420, 20840, 66167, 132334, 264668, 330835, 529336, 661670, 1323340, 2646680]

約数ペア:

[(1, 2646680), (2, 1323340), (4, 661670), (5, 529336), (8, 330835), (10, 264668), (20, 132334), (40, 66167), (127, 20840), (254, 10420), (508, 5210), (521, 5080), (635, 4168), (1016, 2605), (1042, 2540), (1270, 2084)]