7909040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{907}}^1$

素因数の和:1029

約数の個数: 40

約数和(自身を含む): 18577680

約数和(自身を除く): 10668640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 907, 1090, 1744, 1814, 2180, 3628, 4360, 4535, 7256, 8720, 9070, 14512, 18140, 36280, 72560, 98863, 197726, 395452, 494315, 790904, 988630, 1581808, 1977260, 3954520, 7909040]

約数ペア:

[(1, 7909040), (2, 3954520), (4, 1977260), (5, 1581808), (8, 988630), (10, 790904), (16, 494315), (20, 395452), (40, 197726), (80, 98863), (109, 72560), (218, 36280), (436, 18140), (545, 14512), (872, 9070), (907, 8720), (1090, 7256), (1744, 4535), (1814, 4360), (2180, 3628)]