19172380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10771}}^1$

素因数の和:10869

約数の個数: 24

約数和(自身を含む): 40718160

約数和(自身を除く): 21545780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10771, 21542, 43084, 53855, 107710, 215420, 958619, 1917238, 3834476, 4793095, 9586190, 19172380]

約数ペア:

[(1, 19172380), (2, 9586190), (4, 4793095), (5, 3834476), (10, 1917238), (20, 958619), (89, 215420), (178, 107710), (356, 53855), (445, 43084), (890, 21542), (1780, 10771)]