25997296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{124987}}^1$

素因数の和:125008

約数の個数: 20

約数和(自身を含む): 54244792

約数和(自身を除く): 28247496

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 124987, 249974, 499948, 999896, 1624831, 1999792, 3249662, 6499324, 12998648, 25997296]

約数ペア:

[(1, 25997296), (2, 12998648), (4, 6499324), (8, 3249662), (13, 1999792), (16, 1624831), (26, 999896), (52, 499948), (104, 249974), (208, 124987)]