519887500

素因数分解:

$2^2\times 5^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 1312416000

約数和(自身を除く): 792528500

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 125, 190, 199, 209, 220, 250, 275, 380, 398, 418, 475, 500, 550, 625, 796, 836, 950, 995, 1045, 1100, 1250, 1375, 1900, 1990, 2090, 2189, 2375, 2500, 2750, 3125, 3781, 3980, 4180, 4378, 4750, 4975, 5225, 5500, 6250, 6875, 7562, 8756, 9500, 9950, 10450, 10945, 11875, 12500, 13750, 15124, 18905, 19900, 20900, 21890, 23750, 24875, 26125, 27500, 34375, 37810, 41591, 43780, 47500, 49750, 52250, 54725, 59375, 68750, 75620, 83182, 94525, 99500, 104500, 109450, 118750, 124375, 130625, 137500, 166364, 189050, 207955, 218900, 237500, 248750, 261250, 273625, 378100, 415910, 472625, 497500, 522500, 547250, 621875, 653125, 831820, 945250, 1039775, 1094500, 1243750, 1306250, 1368125, 1890500, 2079550, 2363125, 2487500, 2612500, 2736250, 4159100, 4726250, 5198875, 5472500, 6840625, 9452500, 10397750, 11815625, 13681250, 20795500, 23631250, 25994375, 27362500, 47262500, 51988750, 103977500, 129971875, 259943750, 519887500]

約数ペア:

[(1, 519887500), (2, 259943750), (4, 129971875), (5, 103977500), (10, 51988750), (11, 47262500), (19, 27362500), (20, 25994375), (22, 23631250), (25, 20795500), (38, 13681250), (44, 11815625), (50, 10397750), (55, 9452500), (76, 6840625), (95, 5472500), (100, 5198875), (110, 4726250), (125, 4159100), (190, 2736250), (199, 2612500), (209, 2487500), (220, 2363125), (250, 2079550), (275, 1890500), (380, 1368125), (398, 1306250), (418, 1243750), (475, 1094500), (500, 1039775), (550, 945250), (625, 831820), (796, 653125), (836, 621875), (950, 547250), (995, 522500), (1045, 497500), (1100, 472625), (1250, 415910), (1375, 378100), (1900, 273625), (1990, 261250), (2090, 248750), (2189, 237500), (2375, 218900), (2500, 207955), (2750, 189050), (3125, 166364), (3781, 137500), (3980, 130625), (4180, 124375), (4378, 118750), (4750, 109450), (4975, 104500), (5225, 99500), (5500, 94525), (6250, 83182), (6875, 75620), (7562, 68750), (8756, 59375), (9500, 54725), (9950, 52250), (10450, 49750), (10945, 47500), (11875, 43780), (12500, 41591), (13750, 37810), (15124, 34375), (18905, 27500), (19900, 26125), (20900, 24875), (21890, 23750)]