20657600

素因数分解:

$2^6\times 5^2\times {\mathrm{12911}}^1$

素因数の和:12933

約数の個数: 42

約数和(自身を含む): 50834544

約数和(自身を除く): 30176944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12911, 25822, 51644, 64555, 103288, 129110, 206576, 258220, 322775, 413152, 516440, 645550, 826304, 1032880, 1291100, 2065760, 2582200, 4131520, 5164400, 10328800, 20657600]

約数ペア:

[(1, 20657600), (2, 10328800), (4, 5164400), (5, 4131520), (8, 2582200), (10, 2065760), (16, 1291100), (20, 1032880), (25, 826304), (32, 645550), (40, 516440), (50, 413152), (64, 322775), (80, 258220), (100, 206576), (160, 129110), (200, 103288), (320, 64555), (400, 51644), (800, 25822), (1600, 12911)]