90644500

素因数分解:

$2^2\times 5^3\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1129

約数の個数: 48

約数和(自身を含む): 199180800

約数和(自身を除く): 108536300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 199, 250, 398, 500, 796, 911, 995, 1822, 1990, 3644, 3980, 4555, 4975, 9110, 9950, 18220, 19900, 22775, 24875, 45550, 49750, 91100, 99500, 113875, 181289, 227750, 362578, 455500, 725156, 906445, 1812890, 3625780, 4532225, 9064450, 18128900, 22661125, 45322250, 90644500]

約数ペア:

[(1, 90644500), (2, 45322250), (4, 22661125), (5, 18128900), (10, 9064450), (20, 4532225), (25, 3625780), (50, 1812890), (100, 906445), (125, 725156), (199, 455500), (250, 362578), (398, 227750), (500, 181289), (796, 113875), (911, 99500), (995, 91100), (1822, 49750), (1990, 45550), (3644, 24875), (3980, 22775), (4555, 19900), (4975, 18220), (9110, 9950)]