231640880

素因数分解:

$2^4\times 5^1\times {\mathrm{2895511}}^1$

素因数の和:2895524

約数の個数: 20

約数和(自身を含む): 538565232

約数和(自身を除く): 306924352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2895511, 5791022, 11582044, 14477555, 23164088, 28955110, 46328176, 57910220, 115820440, 231640880]

約数ペア:

[(1, 231640880), (2, 115820440), (4, 57910220), (5, 46328176), (8, 28955110), (10, 23164088), (16, 14477555), (20, 11582044), (40, 5791022), (80, 2895511)]