4881680

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 11457600

約数和(自身を除く): 6575920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 439, 556, 695, 878, 1112, 1390, 1756, 2195, 2224, 2780, 3512, 4390, 5560, 7024, 8780, 11120, 17560, 35120, 61021, 122042, 244084, 305105, 488168, 610210, 976336, 1220420, 2440840, 4881680]

約数ペア:

[(1, 4881680), (2, 2440840), (4, 1220420), (5, 976336), (8, 610210), (10, 488168), (16, 305105), (20, 244084), (40, 122042), (80, 61021), (139, 35120), (278, 17560), (439, 11120), (556, 8780), (695, 7024), (878, 5560), (1112, 4390), (1390, 3512), (1756, 2780), (2195, 2224)]