66880457920

素因数分解:

$2^6\times 5^1\times {\mathrm{209001431}}^1$

素因数の和:209001448

約数の個数: 28

約数和(自身を含む): 159259091184

約数和(自身を除く): 92378633264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 209001431, 418002862, 836005724, 1045007155, 1672011448, 2090014310, 3344022896, 4180028620, 6688045792, 8360057240, 13376091584, 16720114480, 33440228960, 66880457920]

約数ペア:

[(1, 66880457920), (2, 33440228960), (4, 16720114480), (5, 13376091584), (8, 8360057240), (10, 6688045792), (16, 4180028620), (20, 3344022896), (32, 2090014310), (40, 1672011448), (64, 1045007155), (80, 836005724), (160, 418002862), (320, 209001431)]