129664496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{623387}}^1$

素因数の和:623408

約数の個数: 20

約数和(自身を含む): 270550392

約数和(自身を除く): 140885896

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 623387, 1246774, 2493548, 4987096, 8104031, 9974192, 16208062, 32416124, 64832248, 129664496]

約数ペア:

[(1, 129664496), (2, 64832248), (4, 32416124), (8, 16208062), (13, 9974192), (16, 8104031), (26, 4987096), (52, 2493548), (104, 1246774), (208, 623387)]