78112880

素因数分解:

$2^4\times 5^1\times {\mathrm{976411}}^1$

素因数の和:976424

約数の個数: 20

約数和(自身を含む): 181612632

約数和(自身を除く): 103499752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 976411, 1952822, 3905644, 4882055, 7811288, 9764110, 15622576, 19528220, 39056440, 78112880]

約数ペア:

[(1, 78112880), (2, 39056440), (4, 19528220), (5, 15622576), (8, 9764110), (10, 7811288), (16, 4882055), (20, 3905644), (40, 1952822), (80, 976411)]