664276496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{187861}}^1$

素因数の和:187899

約数の個数: 40

約数和(自身を含む): 1467577944

約数和(自身を除く): 803301448

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 187861, 375722, 751444, 1502888, 2442193, 3005776, 3193637, 4884386, 6387274, 9768772, 12774548, 19537544, 25549096, 39075088, 41517281, 51098192, 83034562, 166069124, 332138248, 664276496]

約数ペア:

[(1, 664276496), (2, 332138248), (4, 166069124), (8, 83034562), (13, 51098192), (16, 41517281), (17, 39075088), (26, 25549096), (34, 19537544), (52, 12774548), (68, 9768772), (104, 6387274), (136, 4884386), (208, 3193637), (221, 3005776), (272, 2442193), (442, 1502888), (884, 751444), (1768, 375722), (3536, 187861)]