208535120

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{6701}}^1$

素因数の和:7103

約数の個数: 40

約数和(自身を含む): 486163080

約数和(自身を除く): 277627960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 6701, 7780, 13402, 15560, 26804, 31120, 33505, 53608, 67010, 107216, 134020, 268040, 536080, 2606689, 5213378, 10426756, 13033445, 20853512, 26066890, 41707024, 52133780, 104267560, 208535120]

約数ペア:

[(1, 208535120), (2, 104267560), (4, 52133780), (5, 41707024), (8, 26066890), (10, 20853512), (16, 13033445), (20, 10426756), (40, 5213378), (80, 2606689), (389, 536080), (778, 268040), (1556, 134020), (1945, 107216), (3112, 67010), (3890, 53608), (6224, 33505), (6701, 31120), (7780, 26804), (13402, 15560)]