2604340

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 5505192

約数和(自身を除く): 2900852

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 661, 788, 985, 1322, 1970, 2644, 3305, 3940, 6610, 13220, 130217, 260434, 520868, 651085, 1302170, 2604340]

約数ペア:

[(1, 2604340), (2, 1302170), (4, 651085), (5, 520868), (10, 260434), (20, 130217), (197, 13220), (394, 6610), (661, 3940), (788, 3305), (985, 2644), (1322, 1970)]