320364080

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36739}}^1$

素因数の和:36861

約数の個数: 40

約数和(自身を含む): 751700400

約数和(自身を除く): 431336320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 36739, 73478, 146956, 183695, 293912, 367390, 587824, 734780, 1469560, 2939120, 4004551, 8009102, 16018204, 20022755, 32036408, 40045510, 64072816, 80091020, 160182040, 320364080]

約数ペア:

[(1, 320364080), (2, 160182040), (4, 80091020), (5, 64072816), (8, 40045510), (10, 32036408), (16, 20022755), (20, 16018204), (40, 8009102), (80, 4004551), (109, 2939120), (218, 1469560), (436, 734780), (545, 587824), (872, 367390), (1090, 293912), (1744, 183695), (2180, 146956), (4360, 73478), (8720, 36739)]