78627080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{280811}}^1$

素因数の和:280829

約数の個数: 32

約数和(自身を含む): 202184640

約数和(自身を除く): 123557560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 280811, 561622, 1123244, 1404055, 1965677, 2246488, 2808110, 3931354, 5616220, 7862708, 9828385, 11232440, 15725416, 19656770, 39313540, 78627080]

約数ペア:

[(1, 78627080), (2, 39313540), (4, 19656770), (5, 15725416), (7, 11232440), (8, 9828385), (10, 7862708), (14, 5616220), (20, 3931354), (28, 2808110), (35, 2246488), (40, 1965677), (56, 1404055), (70, 1123244), (140, 561622), (280, 280811)]