80720752

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10151}}^1$

素因数の和:10237

約数の個数: 40

約数和(自身を含む): 181274112

約数和(自身を除く): 100553360

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 10151, 20302, 40604, 71057, 81208, 142114, 162416, 284228, 568456, 720721, 1136912, 1441442, 2882884, 5045047, 5765768, 10090094, 11531536, 20180188, 40360376, 80720752]

約数ペア:

[(1, 80720752), (2, 40360376), (4, 20180188), (7, 11531536), (8, 10090094), (14, 5765768), (16, 5045047), (28, 2882884), (56, 1441442), (71, 1136912), (112, 720721), (142, 568456), (284, 284228), (497, 162416), (568, 142114), (994, 81208), (1136, 71057), (1988, 40604), (3976, 20302), (7952, 10151)]