25428208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122251}}^1$

素因数の和:122272

約数の個数: 20

約数和(自身を含む): 53057368

約数和(自身を除く): 27629160

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122251, 244502, 489004, 978008, 1589263, 1956016, 3178526, 6357052, 12714104, 25428208]

約数ペア:

[(1, 25428208), (2, 12714104), (4, 6357052), (8, 3178526), (13, 1956016), (16, 1589263), (26, 978008), (52, 489004), (104, 244502), (208, 122251)]