20575000

素因数分解:

$2^3\times 5^5\times {\mathrm{823}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 48278160

約数和(自身を除く): 27703160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 823, 1000, 1250, 1646, 2500, 3125, 3292, 4115, 5000, 6250, 6584, 8230, 12500, 16460, 20575, 25000, 32920, 41150, 82300, 102875, 164600, 205750, 411500, 514375, 823000, 1028750, 2057500, 2571875, 4115000, 5143750, 10287500, 20575000]

約数ペア:

[(1, 20575000), (2, 10287500), (4, 5143750), (5, 4115000), (8, 2571875), (10, 2057500), (20, 1028750), (25, 823000), (40, 514375), (50, 411500), (100, 205750), (125, 164600), (200, 102875), (250, 82300), (500, 41150), (625, 32920), (823, 25000), (1000, 20575), (1250, 16460), (1646, 12500), (2500, 8230), (3125, 6584), (3292, 6250), (4115, 5000)]