81640912

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{71867}}^1$

素因数の和:71946

約数の個数: 20

約数和(自身を含む): 160409376

約数和(自身を除く): 78768464

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 71867, 143734, 287468, 574936, 1149872, 5102557, 10205114, 20410228, 40820456, 81640912]

約数ペア:

[(1, 81640912), (2, 40820456), (4, 20410228), (8, 10205114), (16, 5102557), (71, 1149872), (142, 574936), (284, 287468), (568, 143734), (1136, 71867)]