28228120

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5077}}^1$

素因数の和:5227

約数の個数: 32

約数和(自身を含む): 63982800

約数和(自身を除く): 35754680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5077, 5560, 10154, 20308, 25385, 40616, 50770, 101540, 203080, 705703, 1411406, 2822812, 3528515, 5645624, 7057030, 14114060, 28228120]

約数ペア:

[(1, 28228120), (2, 14114060), (4, 7057030), (5, 5645624), (8, 3528515), (10, 2822812), (20, 1411406), (40, 705703), (139, 203080), (278, 101540), (556, 50770), (695, 40616), (1112, 25385), (1390, 20308), (2780, 10154), (5077, 5560)]