1330821040

素因数分解:

$2^4\times 5^1\times {\mathrm{16635263}}^1$

素因数の和:16635276

約数の個数: 20

約数和(自身を含む): 3094159104

約数和(自身を除く): 1763338064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16635263, 33270526, 66541052, 83176315, 133082104, 166352630, 266164208, 332705260, 665410520, 1330821040]

約数ペア:

[(1, 1330821040), (2, 665410520), (4, 332705260), (5, 266164208), (8, 166352630), (10, 133082104), (16, 83176315), (20, 66541052), (40, 33270526), (80, 16635263)]