66400240

素因数分解:

$2^4\times 5^1\times {\mathrm{830003}}^1$

素因数の和:830016

約数の個数: 20

約数和(自身を含む): 154380744

約数和(自身を除く): 87980504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 830003, 1660006, 3320012, 4150015, 6640024, 8300030, 13280048, 16600060, 33200120, 66400240]

約数ペア:

[(1, 66400240), (2, 33200120), (4, 16600060), (5, 13280048), (8, 8300030), (10, 6640024), (16, 4150015), (20, 3320012), (40, 1660006), (80, 830003)]