1990380093

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{563}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 3038561280

約数和(自身を除く): 1048181187

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 367, 507, 563, 741, 1101, 1689, 3211, 4771, 6973, 7319, 9633, 10697, 14313, 20919, 21957, 32091, 62023, 90649, 95147, 139061, 186069, 206621, 271947, 285441, 417183, 619863, 1178437, 1807793, 2686073, 3535311, 3925799, 5423379, 8058219, 11777397, 34918949, 51035387, 104756847, 153106161, 663460031, 1990380093]

約数ペア:

[(1, 1990380093), (3, 663460031), (13, 153106161), (19, 104756847), (39, 51035387), (57, 34918949), (169, 11777397), (247, 8058219), (367, 5423379), (507, 3925799), (563, 3535311), (741, 2686073), (1101, 1807793), (1689, 1178437), (3211, 619863), (4771, 417183), (6973, 285441), (7319, 271947), (9633, 206621), (10697, 186069), (14313, 139061), (20919, 95147), (21957, 90649), (32091, 62023)]