80961800

素因数分解:

$2^3\times 5^2\times {\mathrm{317}}^1\times {\mathrm{1277}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 188977860

約数和(自身を除く): 108016060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 317, 634, 1268, 1277, 1585, 2536, 2554, 3170, 5108, 6340, 6385, 7925, 10216, 12680, 12770, 15850, 25540, 31700, 31925, 51080, 63400, 63850, 127700, 255400, 404809, 809618, 1619236, 2024045, 3238472, 4048090, 8096180, 10120225, 16192360, 20240450, 40480900, 80961800]

約数ペア:

[(1, 80961800), (2, 40480900), (4, 20240450), (5, 16192360), (8, 10120225), (10, 8096180), (20, 4048090), (25, 3238472), (40, 2024045), (50, 1619236), (100, 809618), (200, 404809), (317, 255400), (634, 127700), (1268, 63850), (1277, 63400), (1585, 51080), (2536, 31925), (2554, 31700), (3170, 25540), (5108, 15850), (6340, 12770), (6385, 12680), (7925, 10216)]