12578005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3221}}^1$

素因数の和:3308

約数の個数: 16

約数和(自身を含む): 16702848

約数和(自身を除く): 4124843

約数列:

[1, 5, 11, 55, 71, 355, 781, 3221, 3905, 16105, 35431, 177155, 228691, 1143455, 2515601, 12578005]

約数ペア:

[(1, 12578005), (5, 2515601), (11, 1143455), (55, 228691), (71, 177155), (355, 35431), (781, 16105), (3221, 3905)]