80208172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{4457}}^1$

素因数の和:4881

約数の個数: 24

約数和(自身を含む): 153533520

約数和(自身を除く): 73325348

約数列:

[1, 2, 4, 11, 22, 44, 409, 818, 1636, 4457, 4499, 8914, 8998, 17828, 17996, 49027, 98054, 196108, 1822913, 3645826, 7291652, 20052043, 40104086, 80208172]

約数ペア:

[(1, 80208172), (2, 40104086), (4, 20052043), (11, 7291652), (22, 3645826), (44, 1822913), (409, 196108), (818, 98054), (1636, 49027), (4457, 17996), (4499, 17828), (8914, 8998)]