77715280

素因数分解:

$2^4\times 5^1\times {\mathrm{971441}}^1$

素因数の和:971454

約数の個数: 20

約数和(自身を含む): 180688212

約数和(自身を除く): 102972932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971441, 1942882, 3885764, 4857205, 7771528, 9714410, 15543056, 19428820, 38857640, 77715280]

約数ペア:

[(1, 77715280), (2, 38857640), (4, 19428820), (5, 15543056), (8, 9714410), (10, 7771528), (16, 4857205), (20, 3885764), (40, 1942882), (80, 971441)]