1680040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 3827880

約数和(自身を除く): 2147840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 433, 485, 776, 866, 970, 1732, 1940, 2165, 3464, 3880, 4330, 8660, 17320, 42001, 84002, 168004, 210005, 336008, 420010, 840020, 1680040]

約数ペア:

[(1, 1680040), (2, 840020), (4, 420010), (5, 336008), (8, 210005), (10, 168004), (20, 84002), (40, 42001), (97, 17320), (194, 8660), (388, 4330), (433, 3880), (485, 3464), (776, 2165), (866, 1940), (970, 1732)]