1087280

素因数分解:

$2^4\times 5^1\times {\mathrm{13591}}^1$

素因数の和:13604

約数の個数: 20

約数和(自身を含む): 2528112

約数和(自身を除く): 1440832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 13591, 27182, 54364, 67955, 108728, 135910, 217456, 271820, 543640, 1087280]

約数ペア:

[(1, 1087280), (2, 543640), (4, 271820), (5, 217456), (8, 135910), (10, 108728), (16, 67955), (20, 54364), (40, 27182), (80, 13591)]