199764892

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{172807}}^1$

素因数の和:172845

約数の個数: 18

約数和(自身を含む): 371364392

約数和(自身を除く): 171599500

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 172807, 345614, 691228, 2937719, 5875438, 11750876, 49941223, 99882446, 199764892]

約数ペア:

[(1, 199764892), (2, 99882446), (4, 49941223), (17, 11750876), (34, 5875438), (68, 2937719), (289, 691228), (578, 345614), (1156, 172807)]