208403120

素因数分解:

$2^4\times 5^1\times {\mathrm{2605039}}^1$

素因数の和:2605052

約数の個数: 20

約数和(自身を含む): 484537440

約数和(自身を除く): 276134320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2605039, 5210078, 10420156, 13025195, 20840312, 26050390, 41680624, 52100780, 104201560, 208403120]

約数ペア:

[(1, 208403120), (2, 104201560), (4, 52100780), (5, 41680624), (8, 26050390), (10, 20840312), (16, 13025195), (20, 10420156), (40, 5210078), (80, 2605039)]