81402568

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{60209}}^1$

素因数の和:60241

約数の個数: 24

約数和(自身を含む): 165276450

約数和(自身を除く): 83873882

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 60209, 120418, 240836, 481672, 782717, 1565434, 3130868, 6261736, 10175321, 20350642, 40701284, 81402568]

約数ペア:

[(1, 81402568), (2, 40701284), (4, 20350642), (8, 10175321), (13, 6261736), (26, 3130868), (52, 1565434), (104, 782717), (169, 481672), (338, 240836), (676, 120418), (1352, 60209)]