199973879

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{373}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 251328000

約数和(自身を除く): 51354121

約数列:

[1, 7, 19, 29, 133, 139, 203, 373, 551, 973, 2611, 2641, 3857, 4031, 7087, 10817, 18487, 28217, 49609, 51847, 75719, 76589, 205523, 362929, 536123, 985093, 1438661, 1503563, 6895651, 10524941, 28567697, 199973879]

約数ペア:

[(1, 199973879), (7, 28567697), (19, 10524941), (29, 6895651), (133, 1503563), (139, 1438661), (203, 985093), (373, 536123), (551, 362929), (973, 205523), (2611, 76589), (2641, 75719), (3857, 51847), (4031, 49609), (7087, 28217), (10817, 18487)]