81089500

素因数分解:

$2^2\times 5^3\times {\mathrm{127}}^1\times {\mathrm{1277}}^1$

素因数の和:1423

約数の個数: 48

約数和(自身を含む): 178633728

約数和(自身を除く): 97544228

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 127, 250, 254, 500, 508, 635, 1270, 1277, 2540, 2554, 3175, 5108, 6350, 6385, 12700, 12770, 15875, 25540, 31750, 31925, 63500, 63850, 127700, 159625, 162179, 319250, 324358, 638500, 648716, 810895, 1621790, 3243580, 4054475, 8108950, 16217900, 20272375, 40544750, 81089500]

約数ペア:

[(1, 81089500), (2, 40544750), (4, 20272375), (5, 16217900), (10, 8108950), (20, 4054475), (25, 3243580), (50, 1621790), (100, 810895), (125, 648716), (127, 638500), (250, 324358), (254, 319250), (500, 162179), (508, 159625), (635, 127700), (1270, 63850), (1277, 63500), (2540, 31925), (2554, 31750), (3175, 25540), (5108, 15875), (6350, 12770), (6385, 12700)]