205997168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{990371}}^1$

素因数の和:990392

約数の個数: 20

約数和(自身を含む): 429821448

約数和(自身を除く): 223824280

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 990371, 1980742, 3961484, 7922968, 12874823, 15845936, 25749646, 51499292, 102998584, 205997168]

約数ペア:

[(1, 205997168), (2, 102998584), (4, 51499292), (8, 25749646), (13, 15845936), (16, 12874823), (26, 7922968), (52, 3961484), (104, 1980742), (208, 990371)]