20675000

素因数分解:

$2^3\times 5^5\times {\mathrm{827}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 48512520

約数和(自身を除く): 27837520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 827, 1000, 1250, 1654, 2500, 3125, 3308, 4135, 5000, 6250, 6616, 8270, 12500, 16540, 20675, 25000, 33080, 41350, 82700, 103375, 165400, 206750, 413500, 516875, 827000, 1033750, 2067500, 2584375, 4135000, 5168750, 10337500, 20675000]

約数ペア:

[(1, 20675000), (2, 10337500), (4, 5168750), (5, 4135000), (8, 2584375), (10, 2067500), (20, 1033750), (25, 827000), (40, 516875), (50, 413500), (100, 206750), (125, 165400), (200, 103375), (250, 82700), (500, 41350), (625, 33080), (827, 25000), (1000, 20675), (1250, 16540), (1654, 12500), (2500, 8270), (3125, 6616), (3308, 6250), (4135, 5000)]