20550872080

素因数分解:

$2^4\times 5^1\times {\mathrm{256885901}}^1$

素因数の和:256885914

約数の個数: 20

約数和(自身を含む): 47780777772

約数和(自身を除く): 27229905692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256885901, 513771802, 1027543604, 1284429505, 2055087208, 2568859010, 4110174416, 5137718020, 10275436040, 20550872080]

約数ペア:

[(1, 20550872080), (2, 10275436040), (4, 5137718020), (5, 4110174416), (8, 2568859010), (10, 2055087208), (16, 1284429505), (20, 1027543604), (40, 513771802), (80, 256885901)]