28254040

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1609}}^1$

素因数の和:2059

約数の個数: 32

約数和(自身を含む): 63756000

約数和(自身を除く): 35501960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1609, 1756, 2195, 3218, 3512, 4390, 6436, 8045, 8780, 12872, 16090, 17560, 32180, 64360, 706351, 1412702, 2825404, 3531755, 5650808, 7063510, 14127020, 28254040]

約数ペア:

[(1, 28254040), (2, 14127020), (4, 7063510), (5, 5650808), (8, 3531755), (10, 2825404), (20, 1412702), (40, 706351), (439, 64360), (878, 32180), (1609, 17560), (1756, 16090), (2195, 12872), (3218, 8780), (3512, 8045), (4390, 6436)]