40391920

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4999}}^1$

素因数の和:5113

約数の個数: 40

約数和(自身を含む): 94860000

約数和(自身を除く): 54468080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 4999, 8080, 9998, 19996, 24995, 39992, 49990, 79984, 99980, 199960, 399920, 504899, 1009798, 2019596, 2524495, 4039192, 5048990, 8078384, 10097980, 20195960, 40391920]

約数ペア:

[(1, 40391920), (2, 20195960), (4, 10097980), (5, 8078384), (8, 5048990), (10, 4039192), (16, 2524495), (20, 2019596), (40, 1009798), (80, 504899), (101, 399920), (202, 199960), (404, 99980), (505, 79984), (808, 49990), (1010, 39992), (1616, 24995), (2020, 19996), (4040, 9998), (4999, 8080)]