28720298509

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{2213}}^1\times {\mathrm{9133}}^1$

素因数の和:11389

約数の個数: 24

約数和(自身を含む): 34580775960

約数和(自身を除く): 5860477451

約数列:

[1, 7, 29, 49, 203, 1421, 2213, 9133, 15491, 63931, 64177, 108437, 264857, 447517, 449239, 1853999, 3144673, 12977993, 20211329, 141479303, 586128541, 990355121, 4102899787, 28720298509]

約数ペア:

[(1, 28720298509), (7, 4102899787), (29, 990355121), (49, 586128541), (203, 141479303), (1421, 20211329), (2213, 12977993), (9133, 3144673), (15491, 1853999), (63931, 449239), (64177, 447517), (108437, 264857)]