128645072

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{349579}}^1$

素因数の和:349610

約数の個数: 20

約数和(自身を含む): 260087520

約数和(自身を除く): 131442448

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 349579, 699158, 1398316, 2796632, 5593264, 8040317, 16080634, 32161268, 64322536, 128645072]

約数ペア:

[(1, 128645072), (2, 64322536), (4, 32161268), (8, 16080634), (16, 8040317), (23, 5593264), (46, 2796632), (92, 1398316), (184, 699158), (368, 349579)]