199981755

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{40771}}^1$

素因数の和:40891

約数の個数: 24

約数和(自身を含む): 349823760

約数和(自身を除く): 149842005

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905, 40771, 122313, 203855, 366939, 611565, 1834695, 4444039, 13332117, 22220195, 39996351, 66660585, 199981755]

約数ペア:

[(1, 199981755), (3, 66660585), (5, 39996351), (9, 22220195), (15, 13332117), (45, 4444039), (109, 1834695), (327, 611565), (545, 366939), (981, 203855), (1635, 122313), (4905, 40771)]