78538045480

素因数分解:

$2^3\times 5^1\times {\mathrm{9001}}^1\times {\mathrm{218137}}^1$

素因数の和:227149

約数の個数: 32

約数和(自身を含む): 176731044840

約数和(自身を除く): 98192999360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9001, 18002, 36004, 45005, 72008, 90010, 180020, 218137, 360040, 436274, 872548, 1090685, 1745096, 2181370, 4362740, 8725480, 1963451137, 3926902274, 7853804548, 9817255685, 15707609096, 19634511370, 39269022740, 78538045480]

約数ペア:

[(1, 78538045480), (2, 39269022740), (4, 19634511370), (5, 15707609096), (8, 9817255685), (10, 7853804548), (20, 3926902274), (40, 1963451137), (9001, 8725480), (18002, 4362740), (36004, 2181370), (45005, 1745096), (72008, 1090685), (90010, 872548), (180020, 436274), (218137, 360040)]