20481880

素因数分解:

$2^3\times 5^1\times {\mathrm{512047}}^1$

素因数の和:512058

約数の個数: 16

約数和(自身を含む): 46084320

約数和(自身を除く): 25602440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512047, 1024094, 2048188, 2560235, 4096376, 5120470, 10240940, 20481880]

約数ペア:

[(1, 20481880), (2, 10240940), (4, 5120470), (5, 4096376), (8, 2560235), (10, 2048188), (20, 1024094), (40, 512047)]