199999772

素因数分解:

$2^2\times 7^2\times {\mathrm{1020407}}^1$

素因数の和:1020425

約数の個数: 18

約数和(自身を含む): 407142792

約数和(自身を除く): 207143020

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1020407, 2040814, 4081628, 7142849, 14285698, 28571396, 49999943, 99999886, 199999772]

約数ペア:

[(1, 199999772), (2, 99999886), (4, 49999943), (7, 28571396), (14, 14285698), (28, 7142849), (49, 4081628), (98, 2040814), (196, 1020407)]