81968965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{29327}}^1$

素因数の和:29388

約数の個数: 16

約数和(自身を含む): 108396288

約数和(自身を除く): 26427323

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 29327, 146635, 381251, 1261061, 1906255, 6305305, 16393793, 81968965]

約数ペア:

[(1, 81968965), (5, 16393793), (13, 6305305), (43, 1906255), (65, 1261061), (215, 381251), (559, 146635), (2795, 29327)]