12885680

素因数分解:

$2^4\times 5^1\times {\mathrm{161071}}^1$

素因数の和:161084

約数の個数: 20

約数和(自身を含む): 29959392

約数和(自身を除く): 17073712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161071, 322142, 644284, 805355, 1288568, 1610710, 2577136, 3221420, 6442840, 12885680]

約数ペア:

[(1, 12885680), (2, 6442840), (4, 3221420), (5, 2577136), (8, 1610710), (10, 1288568), (16, 805355), (20, 644284), (40, 322142), (80, 161071)]