55004080

素因数分解:

$2^4\times 5^1\times {\mathrm{687551}}^1$

素因数の和:687564

約数の個数: 20

約数和(自身を含む): 127884672

約数和(自身を除く): 72880592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 687551, 1375102, 2750204, 3437755, 5500408, 6875510, 11000816, 13751020, 27502040, 55004080]

約数ペア:

[(1, 55004080), (2, 27502040), (4, 13751020), (5, 11000816), (8, 6875510), (10, 5500408), (16, 3437755), (20, 2750204), (40, 1375102), (80, 687551)]