1323340

素因数分解:

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

素因数の和:657

約数の個数: 24

約数和(自身を含む): 2806272

約数和(自身を除く): 1482932

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 521, 635, 1042, 1270, 2084, 2540, 2605, 5210, 10420, 66167, 132334, 264668, 330835, 661670, 1323340]

約数ペア:

[(1, 1323340), (2, 661670), (4, 330835), (5, 264668), (10, 132334), (20, 66167), (127, 10420), (254, 5210), (508, 2605), (521, 2540), (635, 2084), (1042, 1270)]