87781276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{28099}}^1$

素因数の和:28185

約数の個数: 24

約数和(自身を含む): 169948800

約数和(自身を除く): 82167524

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 28099, 56198, 112396, 309089, 618178, 1236356, 1995029, 3990058, 7980116, 21945319, 43890638, 87781276]

約数ペア:

[(1, 87781276), (2, 43890638), (4, 21945319), (11, 7980116), (22, 3990058), (44, 1995029), (71, 1236356), (142, 618178), (284, 309089), (781, 112396), (1562, 56198), (3124, 28099)]