28205705

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{2027}}^1$

素因数の和:2077

約数の個数: 24

約数和(自身を含む): 38840256

約数和(自身を除く): 10634551

約数列:

[1, 5, 11, 23, 55, 115, 121, 253, 605, 1265, 2027, 2783, 10135, 13915, 22297, 46621, 111485, 233105, 245267, 512831, 1226335, 2564155, 5641141, 28205705]

約数ペア:

[(1, 28205705), (5, 5641141), (11, 2564155), (23, 1226335), (55, 512831), (115, 245267), (121, 233105), (253, 111485), (605, 46621), (1265, 22297), (2027, 13915), (2783, 10135)]