81486364

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{56431}}^1$

素因数の和:56473

約数の個数: 18

約数和(自身を含む): 150504144

約数和(自身を除く): 69017780

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 56431, 112862, 225724, 1072189, 2144378, 4288756, 20371591, 40743182, 81486364]

約数ペア:

[(1, 81486364), (2, 40743182), (4, 20371591), (19, 4288756), (38, 2144378), (76, 1072189), (361, 225724), (722, 112862), (1444, 56431)]