8144120

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2099}}^1$

素因数の和:2207

約数の個数: 32

約数和(自身を含む): 18522000

約数和(自身を除く): 10377880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2099, 3880, 4198, 8396, 10495, 16792, 20990, 41980, 83960, 203603, 407206, 814412, 1018015, 1628824, 2036030, 4072060, 8144120]

約数ペア:

[(1, 8144120), (2, 4072060), (4, 2036030), (5, 1628824), (8, 1018015), (10, 814412), (20, 407206), (40, 203603), (97, 83960), (194, 41980), (388, 20990), (485, 16792), (776, 10495), (970, 8396), (1940, 4198), (2099, 3880)]