20511820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146513}}^1$

素因数の和:146529

約数の個数: 24

約数和(自身を含む): 49228704

約数和(自身を除く): 28716884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146513, 293026, 586052, 732565, 1025591, 1465130, 2051182, 2930260, 4102364, 5127955, 10255910, 20511820]

約数ペア:

[(1, 20511820), (2, 10255910), (4, 5127955), (5, 4102364), (7, 2930260), (10, 2051182), (14, 1465130), (20, 1025591), (28, 732565), (35, 586052), (70, 293026), (140, 146513)]