123842020

素因数分解:

$2^2\times 5^1\times {\mathrm{2269}}^1\times {\mathrm{2729}}^1$

素因数の和:5007

約数の個数: 24

約数和(自身を含む): 260278200

約数和(自身を除く): 136436180

約数列:

[1, 2, 4, 5, 10, 20, 2269, 2729, 4538, 5458, 9076, 10916, 11345, 13645, 22690, 27290, 45380, 54580, 6192101, 12384202, 24768404, 30960505, 61921010, 123842020]

約数ペア:

[(1, 123842020), (2, 61921010), (4, 30960505), (5, 24768404), (10, 12384202), (20, 6192101), (2269, 54580), (2729, 45380), (4538, 27290), (5458, 22690), (9076, 13645), (10916, 11345)]