51284080

素因数分解:

$2^4\times 5^1\times {\mathrm{641051}}^1$

素因数の和:641064

約数の個数: 20

約数和(自身を含む): 119235672

約数和(自身を除く): 67951592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641051, 1282102, 2564204, 3205255, 5128408, 6410510, 10256816, 12821020, 25642040, 51284080]

約数ペア:

[(1, 51284080), (2, 25642040), (4, 12821020), (5, 10256816), (8, 6410510), (10, 5128408), (16, 3205255), (20, 2564204), (40, 1282102), (80, 641051)]