81867544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13103}}^1$

素因数の和:13191

約数の個数: 32

約数和(自身を含む): 169827840

約数和(自身を除く): 87960296

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 6248, 13103, 26206, 52412, 104824, 144133, 288266, 576532, 930313, 1153064, 1860626, 3721252, 7442504, 10233443, 20466886, 40933772, 81867544]

約数ペア:

[(1, 81867544), (2, 40933772), (4, 20466886), (8, 10233443), (11, 7442504), (22, 3721252), (44, 1860626), (71, 1153064), (88, 930313), (142, 576532), (284, 288266), (568, 144133), (781, 104824), (1562, 52412), (3124, 26206), (6248, 13103)]