8397800

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 19716000

約数和(自身を除く): 11318200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 211, 398, 422, 796, 844, 995, 1055, 1592, 1688, 1990, 2110, 3980, 4220, 4975, 5275, 7960, 8440, 9950, 10550, 19900, 21100, 39800, 41989, 42200, 83978, 167956, 209945, 335912, 419890, 839780, 1049725, 1679560, 2099450, 4198900, 8397800]

約数ペア:

[(1, 8397800), (2, 4198900), (4, 2099450), (5, 1679560), (8, 1049725), (10, 839780), (20, 419890), (25, 335912), (40, 209945), (50, 167956), (100, 83978), (199, 42200), (200, 41989), (211, 39800), (398, 21100), (422, 19900), (796, 10550), (844, 9950), (995, 8440), (1055, 7960), (1592, 5275), (1688, 4975), (1990, 4220), (2110, 3980)]