81515924

素因数分解:

$2^2\times 7^1\times {\mathrm{1019}}^1\times {\mathrm{2857}}^1$

素因数の和:3887

約数の個数: 24

約数和(自身を含む): 163248960

約数和(自身を除く): 81733036

約数列:

[1, 2, 4, 7, 14, 28, 1019, 2038, 2857, 4076, 5714, 7133, 11428, 14266, 19999, 28532, 39998, 79996, 2911283, 5822566, 11645132, 20378981, 40757962, 81515924]

約数ペア:

[(1, 81515924), (2, 40757962), (4, 20378981), (7, 11645132), (14, 5822566), (28, 2911283), (1019, 79996), (2038, 39998), (2857, 28532), (4076, 19999), (5714, 14266), (7133, 11428)]