11403440

素因数分解:

$2^4\times 5^1\times {\mathrm{142543}}^1$

素因数の和:142556

約数の個数: 20

約数和(自身を含む): 26513184

約数和(自身を除く): 15109744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 142543, 285086, 570172, 712715, 1140344, 1425430, 2280688, 2850860, 5701720, 11403440]

約数ペア:

[(1, 11403440), (2, 5701720), (4, 2850860), (5, 2280688), (8, 1425430), (10, 1140344), (16, 712715), (20, 570172), (40, 285086), (80, 142543)]