80782160

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7951}}^1$

素因数の和:8091

約数の個数: 40

約数和(自身を含む): 189321216

約数和(自身を除く): 108539056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 7951, 10160, 15902, 31804, 39755, 63608, 79510, 127216, 159020, 318040, 636080, 1009777, 2019554, 4039108, 5048885, 8078216, 10097770, 16156432, 20195540, 40391080, 80782160]

約数ペア:

[(1, 80782160), (2, 40391080), (4, 20195540), (5, 16156432), (8, 10097770), (10, 8078216), (16, 5048885), (20, 4039108), (40, 2019554), (80, 1009777), (127, 636080), (254, 318040), (508, 159020), (635, 127216), (1016, 79510), (1270, 63608), (2032, 39755), (2540, 31804), (5080, 15902), (7951, 10160)]