28683860

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{7207}}^1$

素因数の和:7415

約数の個数: 24

約数和(自身を含む): 60547200

約数和(自身を除く): 31863340

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 7207, 14414, 28828, 36035, 72070, 144140, 1434193, 2868386, 5736772, 7170965, 14341930, 28683860]

約数ペア:

[(1, 28683860), (2, 14341930), (4, 7170965), (5, 5736772), (10, 2868386), (20, 1434193), (199, 144140), (398, 72070), (796, 36035), (995, 28828), (1990, 14414), (3980, 7207)]