1991240728768

素因数分解:

$2^6\times {\mathrm{173}}^1\times {\mathrm{179844719}}^1$

素因数の和:179844904

約数の個数: 28

約数和(自身を含む): 3974208622560

約数和(自身を除く): 1982967893792

約数列:

[1, 2, 4, 8, 16, 32, 64, 173, 346, 692, 1384, 2768, 5536, 11072, 179844719, 359689438, 719378876, 1438757752, 2877515504, 5755031008, 11510062016, 31113136387, 62226272774, 124452545548, 248905091096, 497810182192, 995620364384, 1991240728768]

約数ペア:

[(1, 1991240728768), (2, 995620364384), (4, 497810182192), (8, 248905091096), (16, 124452545548), (32, 62226272774), (64, 31113136387), (173, 11510062016), (346, 5755031008), (692, 2877515504), (1384, 1438757752), (2768, 719378876), (5536, 359689438), (11072, 179844719)]