8001520

素因数分解:

$2^4\times 5^1\times {\mathrm{100019}}^1$

素因数の和:100032

約数の個数: 20

約数和(自身を含む): 18603720

約数和(自身を除く): 10602200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 100019, 200038, 400076, 500095, 800152, 1000190, 1600304, 2000380, 4000760, 8001520]

約数ペア:

[(1, 8001520), (2, 4000760), (4, 2000380), (5, 1600304), (8, 1000190), (10, 800152), (16, 500095), (20, 400076), (40, 200038), (80, 100019)]