13681250

素因数分解:

$2^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:237

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 14441950

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 199, 250, 275, 398, 550, 625, 995, 1250, 1375, 1990, 2189, 2750, 3125, 4378, 4975, 6250, 6875, 9950, 10945, 13750, 21890, 24875, 34375, 49750, 54725, 68750, 109450, 124375, 248750, 273625, 547250, 621875, 1243750, 1368125, 2736250, 6840625, 13681250]

約数ペア:

[(1, 13681250), (2, 6840625), (5, 2736250), (10, 1368125), (11, 1243750), (22, 621875), (25, 547250), (50, 273625), (55, 248750), (110, 124375), (125, 109450), (199, 68750), (250, 54725), (275, 49750), (398, 34375), (550, 24875), (625, 21890), (995, 13750), (1250, 10945), (1375, 9950), (1990, 6875), (2189, 6250), (2750, 4975), (3125, 4378)]