128532016

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{16361}}^1$

素因数の和:16860

約数の個数: 20

約数和(自身を含む): 249553224

約数和(自身を除く): 121021208

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 16361, 32722, 65444, 130888, 261776, 8033251, 16066502, 32133004, 64266008, 128532016]

約数ペア:

[(1, 128532016), (2, 64266008), (4, 32133004), (8, 16066502), (16, 8033251), (491, 261776), (982, 130888), (1964, 65444), (3928, 32722), (7856, 16361)]