25445000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{727}}^1$

素因数の和:760

約数の個数: 80

約数和(自身を含む): 68228160

約数和(自身を除く): 42783160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 625, 700, 727, 875, 1000, 1250, 1400, 1454, 1750, 2500, 2908, 3500, 3635, 4375, 5000, 5089, 5816, 7000, 7270, 8750, 10178, 14540, 17500, 18175, 20356, 25445, 29080, 35000, 36350, 40712, 50890, 72700, 90875, 101780, 127225, 145400, 181750, 203560, 254450, 363500, 454375, 508900, 636125, 727000, 908750, 1017800, 1272250, 1817500, 2544500, 3180625, 3635000, 5089000, 6361250, 12722500, 25445000]

約数ペア:

[(1, 25445000), (2, 12722500), (4, 6361250), (5, 5089000), (7, 3635000), (8, 3180625), (10, 2544500), (14, 1817500), (20, 1272250), (25, 1017800), (28, 908750), (35, 727000), (40, 636125), (50, 508900), (56, 454375), (70, 363500), (100, 254450), (125, 203560), (140, 181750), (175, 145400), (200, 127225), (250, 101780), (280, 90875), (350, 72700), (500, 50890), (625, 40712), (700, 36350), (727, 35000), (875, 29080), (1000, 25445), (1250, 20356), (1400, 18175), (1454, 17500), (1750, 14540), (2500, 10178), (2908, 8750), (3500, 7270), (3635, 7000), (4375, 5816), (5000, 5089)]