208508505

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{8737}}^1$

素因数の和:8825

約数の個数: 32

約数和(自身を含む): 350638464

約数和(自身を除く): 142129959

約数列:

[1, 3, 5, 15, 37, 43, 111, 129, 185, 215, 555, 645, 1591, 4773, 7955, 8737, 23865, 26211, 43685, 131055, 323269, 375691, 969807, 1127073, 1616345, 1878455, 4849035, 5635365, 13900567, 41701701, 69502835, 208508505]

約数ペア:

[(1, 208508505), (3, 69502835), (5, 41701701), (15, 13900567), (37, 5635365), (43, 4849035), (111, 1878455), (129, 1616345), (185, 1127073), (215, 969807), (555, 375691), (645, 323269), (1591, 131055), (4773, 43685), (7955, 26211), (8737, 23865)]