199890832

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{290539}}^1$

素因数の和:290590

約数の個数: 20

約数和(自身を含む): 396296560

約数和(自身を除く): 196405728

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 290539, 581078, 1162156, 2324312, 4648624, 12493177, 24986354, 49972708, 99945416, 199890832]

約数ペア:

[(1, 199890832), (2, 99945416), (4, 49972708), (8, 24986354), (16, 12493177), (43, 4648624), (86, 2324312), (172, 1162156), (344, 581078), (688, 290539)]