80147420

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{20981}}^1$

素因数の和:21181

約数の個数: 24

約数和(自身を含む): 169198848

約数和(自身を除く): 89051428

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 20981, 41962, 83924, 104905, 209810, 419620, 4007371, 8014742, 16029484, 20036855, 40073710, 80147420]

約数ペア:

[(1, 80147420), (2, 40073710), (4, 20036855), (5, 16029484), (10, 8014742), (20, 4007371), (191, 419620), (382, 209810), (764, 104905), (955, 83924), (1910, 41962), (3820, 20981)]