3136240

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 7365600

約数和(自身を除く): 4229360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 199, 394, 398, 788, 796, 985, 995, 1576, 1592, 1970, 1990, 3152, 3184, 3940, 3980, 7880, 7960, 15760, 15920, 39203, 78406, 156812, 196015, 313624, 392030, 627248, 784060, 1568120, 3136240]

約数ペア:

[(1, 3136240), (2, 1568120), (4, 784060), (5, 627248), (8, 392030), (10, 313624), (16, 196015), (20, 156812), (40, 78406), (80, 39203), (197, 15920), (199, 15760), (394, 7960), (398, 7880), (788, 3980), (796, 3940), (985, 3184), (995, 3152), (1576, 1990), (1592, 1970)]