490490000

素因数分解:

$2^4\times 5^4\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:73

約数の個数: 400

約数和(自身を含む): 1626979200

約数和(自身を除く): 1136489200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 35, 40, 44, 49, 50, 52, 55, 56, 65, 70, 77, 80, 88, 91, 98, 100, 104, 110, 112, 125, 130, 140, 143, 154, 175, 176, 182, 196, 200, 208, 220, 245, 250, 260, 275, 280, 286, 308, 325, 343, 350, 364, 385, 392, 400, 440, 455, 490, 500, 520, 539, 550, 560, 572, 616, 625, 637, 650, 686, 700, 715, 728, 770, 784, 875, 880, 910, 980, 1000, 1001, 1040, 1078, 1100, 1144, 1225, 1232, 1250, 1274, 1300, 1372, 1375, 1400, 1430, 1456, 1540, 1625, 1715, 1750, 1820, 1925, 1960, 2000, 2002, 2156, 2200, 2275, 2288, 2450, 2500, 2548, 2600, 2695, 2744, 2750, 2800, 2860, 3080, 3185, 3250, 3430, 3500, 3575, 3640, 3773, 3850, 3920, 4004, 4312, 4375, 4400, 4459, 4550, 4900, 5000, 5005, 5096, 5200, 5390, 5488, 5500, 5720, 6125, 6160, 6370, 6500, 6860, 6875, 7000, 7007, 7150, 7280, 7546, 7700, 8008, 8125, 8575, 8624, 8750, 8918, 9100, 9625, 9800, 10000, 10010, 10192, 10780, 11000, 11375, 11440, 12250, 12740, 13000, 13475, 13720, 13750, 14000, 14014, 14300, 15092, 15400, 15925, 16016, 16250, 17150, 17500, 17836, 17875, 18200, 18865, 19250, 19600, 20020, 21560, 22000, 22295, 22750, 24500, 25025, 25480, 26000, 26950, 27440, 27500, 28028, 28600, 30184, 30625, 30800, 31850, 32500, 34300, 35000, 35035, 35672, 35750, 36400, 37730, 38500, 40040, 42875, 43120, 44590, 45500, 48125, 49000, 49049, 50050, 50960, 53900, 55000, 56056, 56875, 57200, 60368, 61250, 63700, 65000, 67375, 68600, 70000, 70070, 71344, 71500, 75460, 77000, 79625, 80080, 85750, 89180, 89375, 91000, 94325, 96250, 98000, 98098, 100100, 107800, 110000, 111475, 112112, 113750, 122500, 125125, 127400, 130000, 134750, 137200, 140140, 143000, 150920, 154000, 159250, 171500, 175175, 178360, 178750, 182000, 188650, 192500, 196196, 200200, 214375, 215600, 222950, 227500, 245000, 245245, 250250, 254800, 269500, 280280, 286000, 301840, 318500, 336875, 343000, 350350, 356720, 357500, 377300, 385000, 392392, 398125, 400400, 428750, 445900, 455000, 471625, 490000, 490490, 500500, 539000, 557375, 560560, 625625, 637000, 673750, 686000, 700700, 715000, 754600, 770000, 784784, 796250, 857500, 875875, 891800, 910000, 943250, 980980, 1001000, 1078000, 1114750, 1226225, 1251250, 1274000, 1347500, 1401400, 1430000, 1509200, 1592500, 1715000, 1751750, 1783600, 1886500, 1961960, 2002000, 2229500, 2358125, 2452450, 2502500, 2695000, 2786875, 2802800, 3185000, 3430000, 3503500, 3773000, 3923920, 4379375, 4459000, 4716250, 4904900, 5005000, 5390000, 5573750, 6131125, 6370000, 7007000, 7546000, 8758750, 8918000, 9432500, 9809800, 10010000, 11147500, 12262250, 14014000, 17517500, 18865000, 19619600, 22295000, 24524500, 30655625, 35035000, 37730000, 44590000, 49049000, 61311250, 70070000, 98098000, 122622500, 245245000, 490490000]

約数ペア:

[(1, 490490000), (2, 245245000), (4, 122622500), (5, 98098000), (7, 70070000), (8, 61311250), (10, 49049000), (11, 44590000), (13, 37730000), (14, 35035000), (16, 30655625), (20, 24524500), (22, 22295000), (25, 19619600), (26, 18865000), (28, 17517500), (35, 14014000), (40, 12262250), (44, 11147500), (49, 10010000), (50, 9809800), (52, 9432500), (55, 8918000), (56, 8758750), (65, 7546000), (70, 7007000), (77, 6370000), (80, 6131125), (88, 5573750), (91, 5390000), (98, 5005000), (100, 4904900), (104, 4716250), (110, 4459000), (112, 4379375), (125, 3923920), (130, 3773000), (140, 3503500), (143, 3430000), (154, 3185000), (175, 2802800), (176, 2786875), (182, 2695000), (196, 2502500), (200, 2452450), (208, 2358125), (220, 2229500), (245, 2002000), (250, 1961960), (260, 1886500), (275, 1783600), (280, 1751750), (286, 1715000), (308, 1592500), (325, 1509200), (343, 1430000), (350, 1401400), (364, 1347500), (385, 1274000), (392, 1251250), (400, 1226225), (440, 1114750), (455, 1078000), (490, 1001000), (500, 980980), (520, 943250), (539, 910000), (550, 891800), (560, 875875), (572, 857500), (616, 796250), (625, 784784), (637, 770000), (650, 754600), (686, 715000), (700, 700700), (715, 686000), (728, 673750), (770, 637000), (784, 625625), (875, 560560), (880, 557375), (910, 539000), (980, 500500), (1000, 490490), (1001, 490000), (1040, 471625), (1078, 455000), (1100, 445900), (1144, 428750), (1225, 400400), (1232, 398125), (1250, 392392), (1274, 385000), (1300, 377300), (1372, 357500), (1375, 356720), (1400, 350350), (1430, 343000), (1456, 336875), (1540, 318500), (1625, 301840), (1715, 286000), (1750, 280280), (1820, 269500), (1925, 254800), (1960, 250250), (2000, 245245), (2002, 245000), (2156, 227500), (2200, 222950), (2275, 215600), (2288, 214375), (2450, 200200), (2500, 196196), (2548, 192500), (2600, 188650), (2695, 182000), (2744, 178750), (2750, 178360), (2800, 175175), (2860, 171500), (3080, 159250), (3185, 154000), (3250, 150920), (3430, 143000), (3500, 140140), (3575, 137200), (3640, 134750), (3773, 130000), (3850, 127400), (3920, 125125), (4004, 122500), (4312, 113750), (4375, 112112), (4400, 111475), (4459, 110000), (4550, 107800), (4900, 100100), (5000, 98098), (5005, 98000), (5096, 96250), (5200, 94325), (5390, 91000), (5488, 89375), (5500, 89180), (5720, 85750), (6125, 80080), (6160, 79625), (6370, 77000), (6500, 75460), (6860, 71500), (6875, 71344), (7000, 70070), (7007, 70000), (7150, 68600), (7280, 67375), (7546, 65000), (7700, 63700), (8008, 61250), (8125, 60368), (8575, 57200), (8624, 56875), (8750, 56056), (8918, 55000), (9100, 53900), (9625, 50960), (9800, 50050), (10000, 49049), (10010, 49000), (10192, 48125), (10780, 45500), (11000, 44590), (11375, 43120), (11440, 42875), (12250, 40040), (12740, 38500), (13000, 37730), (13475, 36400), (13720, 35750), (13750, 35672), (14000, 35035), (14014, 35000), (14300, 34300), (15092, 32500), (15400, 31850), (15925, 30800), (16016, 30625), (16250, 30184), (17150, 28600), (17500, 28028), (17836, 27500), (17875, 27440), (18200, 26950), (18865, 26000), (19250, 25480), (19600, 25025), (20020, 24500), (21560, 22750), (22000, 22295)]