20981600

素因数分解:

$2^5\times 5^2\times {\mathrm{26227}}^1$

素因数の和:26247

約数の個数: 36

約数和(自身を含む): 51223284

約数和(自身を除く): 30241684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26227, 52454, 104908, 131135, 209816, 262270, 419632, 524540, 655675, 839264, 1049080, 1311350, 2098160, 2622700, 4196320, 5245400, 10490800, 20981600]

約数ペア:

[(1, 20981600), (2, 10490800), (4, 5245400), (5, 4196320), (8, 2622700), (10, 2098160), (16, 1311350), (20, 1049080), (25, 839264), (32, 655675), (40, 524540), (50, 419632), (80, 262270), (100, 209816), (160, 131135), (200, 104908), (400, 52454), (800, 26227)]