4198900

素因数分解:

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

素因数の和:424

約数の個数: 36

約数和(自身を含む): 9200800

約数和(自身を除く): 5001900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 211, 398, 422, 796, 844, 995, 1055, 1990, 2110, 3980, 4220, 4975, 5275, 9950, 10550, 19900, 21100, 41989, 83978, 167956, 209945, 419890, 839780, 1049725, 2099450, 4198900]

約数ペア:

[(1, 4198900), (2, 2099450), (4, 1049725), (5, 839780), (10, 419890), (20, 209945), (25, 167956), (50, 83978), (100, 41989), (199, 21100), (211, 19900), (398, 10550), (422, 9950), (796, 5275), (844, 4975), (995, 4220), (1055, 3980), (1990, 2110)]