39560720

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{991}}^1$

素因数の和:1503

約数の個数: 40

約数和(自身を含む): 92256000

約数和(自身を除く): 52695280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 991, 998, 1982, 1996, 2495, 3964, 3992, 4955, 4990, 7928, 7984, 9910, 9980, 15856, 19820, 19960, 39640, 39920, 79280, 494509, 989018, 1978036, 2472545, 3956072, 4945090, 7912144, 9890180, 19780360, 39560720]

約数ペア:

[(1, 39560720), (2, 19780360), (4, 9890180), (5, 7912144), (8, 4945090), (10, 3956072), (16, 2472545), (20, 1978036), (40, 989018), (80, 494509), (499, 79280), (991, 39920), (998, 39640), (1982, 19960), (1996, 19820), (2495, 15856), (3964, 9980), (3992, 9910), (4955, 7984), (4990, 7928)]