81877768

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20593}}^1$

素因数の和:20677

約数の個数: 32

約数和(自身を含む): 177932160

約数和(自身を除く): 96054392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 20593, 41186, 82372, 144151, 164744, 288302, 576604, 1153208, 1462103, 2924206, 5848412, 10234721, 11696824, 20469442, 40938884, 81877768]

約数ペア:

[(1, 81877768), (2, 40938884), (4, 20469442), (7, 11696824), (8, 10234721), (14, 5848412), (28, 2924206), (56, 1462103), (71, 1153208), (142, 576604), (284, 288302), (497, 164744), (568, 144151), (994, 82372), (1988, 41186), (3976, 20593)]