16120880

素因数分解:

$2^4\times 5^1\times {\mathrm{201511}}^1$

素因数の和:201524

約数の個数: 20

約数和(自身を含む): 37481232

約数和(自身を除く): 21360352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 201511, 403022, 806044, 1007555, 1612088, 2015110, 3224176, 4030220, 8060440, 16120880]

約数ペア:

[(1, 16120880), (2, 8060440), (4, 4030220), (5, 3224176), (8, 2015110), (10, 1612088), (16, 1007555), (20, 806044), (40, 403022), (80, 201511)]