656120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 1512000

約数和(自身を除く): 855880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 349, 376, 470, 698, 940, 1396, 1745, 1880, 2792, 3490, 6980, 13960, 16403, 32806, 65612, 82015, 131224, 164030, 328060, 656120]

約数ペア:

[(1, 656120), (2, 328060), (4, 164030), (5, 131224), (8, 82015), (10, 65612), (20, 32806), (40, 16403), (47, 13960), (94, 6980), (188, 3490), (235, 2792), (349, 1880), (376, 1745), (470, 1396), (698, 940)]