12830257420

素因数分解:

$2^2\times 5^1\times {\mathrm{641512871}}^1$

素因数の和:641512880

約数の個数: 12

約数和(自身を含む): 26943540624

約数和(自身を除く): 14113283204

約数列:

[1, 2, 4, 5, 10, 20, 641512871, 1283025742, 2566051484, 3207564355, 6415128710, 12830257420]

約数ペア:

[(1, 12830257420), (2, 6415128710), (4, 3207564355), (5, 2566051484), (10, 1283025742), (20, 641512871)]