80996920

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{6911}}^1$

素因数の和:7215

約数の個数: 32

約数和(自身を含む): 182891520

約数和(自身を除く): 101894600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2930, 5860, 6911, 11720, 13822, 27644, 34555, 55288, 69110, 138220, 276440, 2024923, 4049846, 8099692, 10124615, 16199384, 20249230, 40498460, 80996920]

約数ペア:

[(1, 80996920), (2, 40498460), (4, 20249230), (5, 16199384), (8, 10124615), (10, 8099692), (20, 4049846), (40, 2024923), (293, 276440), (586, 138220), (1172, 69110), (1465, 55288), (2344, 34555), (2930, 27644), (5860, 13822), (6911, 11720)]