81021328

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{56897}}^1$

素因数の和:56994

約数の個数: 20

約数和(自身を含む): 158745420

約数和(自身を除く): 77724092

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 56897, 113794, 227588, 455176, 910352, 5063833, 10127666, 20255332, 40510664, 81021328]

約数ペア:

[(1, 81021328), (2, 40510664), (4, 20255332), (8, 10127666), (16, 5063833), (89, 910352), (178, 455176), (356, 227588), (712, 113794), (1424, 56897)]