80720960

素因数分解:

$2^6\times 5^1\times {\mathrm{252253}}^1$

素因数の和:252270

約数の個数: 28

約数和(自身を含む): 192217548

約数和(自身を除く): 111496588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 252253, 504506, 1009012, 1261265, 2018024, 2522530, 4036048, 5045060, 8072096, 10090120, 16144192, 20180240, 40360480, 80720960]

約数ペア:

[(1, 80720960), (2, 40360480), (4, 20180240), (5, 16144192), (8, 10090120), (10, 8072096), (16, 5045060), (20, 4036048), (32, 2522530), (40, 2018024), (64, 1261265), (80, 1009012), (160, 504506), (320, 252253)]