25998128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{124991}}^1$

素因数の和:125012

約数の個数: 20

約数和(自身を含む): 54246528

約数和(自身を除く): 28248400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 124991, 249982, 499964, 999928, 1624883, 1999856, 3249766, 6499532, 12999064, 25998128]

約数ペア:

[(1, 25998128), (2, 12999064), (4, 6499532), (8, 3249766), (13, 1999856), (16, 1624883), (26, 999928), (52, 499964), (104, 249982), (208, 124991)]