18125680

素因数分解:

$2^4\times 5^1\times {\mathrm{226571}}^1$

素因数の和:226584

約数の個数: 20

約数和(自身を含む): 42142392

約数和(自身を除く): 24016712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226571, 453142, 906284, 1132855, 1812568, 2265710, 3625136, 4531420, 9062840, 18125680]

約数ペア:

[(1, 18125680), (2, 9062840), (4, 4531420), (5, 3625136), (8, 2265710), (10, 1812568), (16, 1132855), (20, 906284), (40, 453142), (80, 226571)]