78512161

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 104310000

約数和(自身を除く): 25797839

約数列:

[1, 7, 13, 19, 49, 91, 133, 169, 247, 499, 637, 931, 1183, 1729, 3211, 3493, 6487, 8281, 9481, 12103, 22477, 24451, 45409, 66367, 84331, 123253, 157339, 317863, 464569, 590317, 862771, 1602289, 4132219, 6039397, 11216023, 78512161]

約数ペア:

[(1, 78512161), (7, 11216023), (13, 6039397), (19, 4132219), (49, 1602289), (91, 862771), (133, 590317), (169, 464569), (247, 317863), (499, 157339), (637, 123253), (931, 84331), (1183, 66367), (1729, 45409), (3211, 24451), (3493, 22477), (6487, 12103), (8281, 9481)]