80025860

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{20107}}^1$

素因数の和:20315

約数の個数: 24

約数和(自身を含む): 168907200

約数和(自身を除く): 88881340

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 20107, 40214, 80428, 100535, 201070, 402140, 4001293, 8002586, 16005172, 20006465, 40012930, 80025860]

約数ペア:

[(1, 80025860), (2, 40012930), (4, 20006465), (5, 16005172), (10, 8002586), (20, 4001293), (199, 402140), (398, 201070), (796, 100535), (995, 80428), (1990, 40214), (3980, 20107)]