12743960

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1601}}^1$

素因数の和:1811

約数の個数: 32

約数和(自身を含む): 28836000

約数和(自身を除く): 16092040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1601, 1990, 3202, 3980, 6404, 7960, 8005, 12808, 16010, 32020, 64040, 318599, 637198, 1274396, 1592995, 2548792, 3185990, 6371980, 12743960]

約数ペア:

[(1, 12743960), (2, 6371980), (4, 3185990), (5, 2548792), (8, 1592995), (10, 1274396), (20, 637198), (40, 318599), (199, 64040), (398, 32020), (796, 16010), (995, 12808), (1592, 8005), (1601, 7960), (1990, 6404), (3202, 3980)]