55156780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{393977}}^1$

素因数の和:393993

約数の個数: 24

約数和(自身を含む): 132376608

約数和(自身を除く): 77219828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 393977, 787954, 1575908, 1969885, 2757839, 3939770, 5515678, 7879540, 11031356, 13789195, 27578390, 55156780]

約数ペア:

[(1, 55156780), (2, 27578390), (4, 13789195), (5, 11031356), (7, 7879540), (10, 5515678), (14, 3939770), (20, 2757839), (28, 1969885), (35, 1575908), (70, 787954), (140, 393977)]