11640880

素因数分解:

$2^4\times 5^1\times {\mathrm{145511}}^1$

素因数の和:145524

約数の個数: 20

約数和(自身を含む): 27065232

約数和(自身を除く): 15424352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 145511, 291022, 582044, 727555, 1164088, 1455110, 2328176, 2910220, 5820440, 11640880]

約数ペア:

[(1, 11640880), (2, 5820440), (4, 2910220), (5, 2328176), (8, 1455110), (10, 1164088), (16, 727555), (20, 582044), (40, 291022), (80, 145511)]