40395880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{144271}}^1$

素因数の和:144289

約数の個数: 32

約数和(自身を含む): 103875840

約数和(自身を除く): 63479960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 144271, 288542, 577084, 721355, 1009897, 1154168, 1442710, 2019794, 2885420, 4039588, 5049485, 5770840, 8079176, 10098970, 20197940, 40395880]

約数ペア:

[(1, 40395880), (2, 20197940), (4, 10098970), (5, 8079176), (7, 5770840), (8, 5049485), (10, 4039588), (14, 2885420), (20, 2019794), (28, 1442710), (35, 1154168), (40, 1009897), (56, 721355), (70, 577084), (140, 288542), (280, 144271)]