22104920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2777}}^1$

素因数の和:2987

約数の個数: 32

約数和(自身を含む): 50004000

約数和(自身を除く): 27899080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2777, 3980, 5554, 7960, 11108, 13885, 22216, 27770, 55540, 111080, 552623, 1105246, 2210492, 2763115, 4420984, 5526230, 11052460, 22104920]

約数ペア:

[(1, 22104920), (2, 11052460), (4, 5526230), (5, 4420984), (8, 2763115), (10, 2210492), (20, 1105246), (40, 552623), (199, 111080), (398, 55540), (796, 27770), (995, 22216), (1592, 13885), (1990, 11108), (2777, 7960), (3980, 5554)]