80821328

素因数分解:

$2^4\times 7^1\times {\mathrm{721619}}^1$

素因数の和:721634

約数の個数: 20

約数和(自身を含む): 178961760

約数和(自身を除く): 98140432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 721619, 1443238, 2886476, 5051333, 5772952, 10102666, 11545904, 20205332, 40410664, 80821328]

約数ペア:

[(1, 80821328), (2, 40410664), (4, 20205332), (7, 11545904), (8, 10102666), (14, 5772952), (16, 5051333), (28, 2886476), (56, 1443238), (112, 721619)]