28124540

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{4969}}^1$

素因数の和:5261

約数の個数: 24

約数和(自身を含む): 59282160

約数和(自身を除く): 31157620

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 4969, 5660, 9938, 19876, 24845, 49690, 99380, 1406227, 2812454, 5624908, 7031135, 14062270, 28124540]

約数ペア:

[(1, 28124540), (2, 14062270), (4, 7031135), (5, 5624908), (10, 2812454), (20, 1406227), (283, 99380), (566, 49690), (1132, 24845), (1415, 19876), (2830, 9938), (4969, 5660)]