20728112

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{4139}}^1$

素因数の和:4460

約数の個数: 20

約数和(自身を含む): 40298760

約数和(自身を除く): 19570648

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 4139, 5008, 8278, 16556, 33112, 66224, 1295507, 2591014, 5182028, 10364056, 20728112]

約数ペア:

[(1, 20728112), (2, 10364056), (4, 5182028), (8, 2591014), (16, 1295507), (313, 66224), (626, 33112), (1252, 16556), (2504, 8278), (4139, 5008)]