128084080

素因数分解:

$2^4\times 5^1\times {\mathrm{1601051}}^1$

素因数の和:1601064

約数の個数: 20

約数和(自身を含む): 297795672

約数和(自身を除く): 169711592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1601051, 3202102, 6404204, 8005255, 12808408, 16010510, 25616816, 32021020, 64042040, 128084080]

約数ペア:

[(1, 128084080), (2, 64042040), (4, 32021020), (5, 25616816), (8, 16010510), (10, 12808408), (16, 8005255), (20, 6404204), (40, 3202102), (80, 1601051)]