161441920

素因数分解:

$2^7\times 5^1\times {\mathrm{252253}}^1$

素因数の和:252272

約数の個数: 32

約数和(自身を含む): 385948620

約数和(自身を除く): 224506700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 252253, 504506, 1009012, 1261265, 2018024, 2522530, 4036048, 5045060, 8072096, 10090120, 16144192, 20180240, 32288384, 40360480, 80720960, 161441920]

約数ペア:

[(1, 161441920), (2, 80720960), (4, 40360480), (5, 32288384), (8, 20180240), (10, 16144192), (16, 10090120), (20, 8072096), (32, 5045060), (40, 4036048), (64, 2522530), (80, 2018024), (128, 1261265), (160, 1009012), (320, 504506), (640, 252253)]