205049317540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1\times {\mathrm{262877}}^1$

素因数の和:263836

約数の個数: 48

約数和(自身を含む): 441105077952

約数和(自身を除く): 236055760412

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 907, 1814, 3628, 4535, 9070, 18140, 39001, 78002, 156004, 195005, 262877, 390010, 525754, 780020, 1051508, 1314385, 2628770, 5257540, 11303711, 22607422, 45214844, 56518555, 113037110, 226074220, 238429439, 476858878, 953717756, 1192147195, 2384294390, 4768588780, 10252465877, 20504931754, 41009863508, 51262329385, 102524658770, 205049317540]

約数ペア:

[(1, 205049317540), (2, 102524658770), (4, 51262329385), (5, 41009863508), (10, 20504931754), (20, 10252465877), (43, 4768588780), (86, 2384294390), (172, 1192147195), (215, 953717756), (430, 476858878), (860, 238429439), (907, 226074220), (1814, 113037110), (3628, 56518555), (4535, 45214844), (9070, 22607422), (18140, 11303711), (39001, 5257540), (78002, 2628770), (156004, 1314385), (195005, 1051508), (262877, 780020), (390010, 525754)]