About the Number

28028000

28027999 ← → 28028001

2進数表記:1101010111010110001100000

漢数字表記:二千八百二万八千

素因数分解:

2 5 × 5 3 × 7 2 × 11 1 × 13 1

素因数の和:63
約数の個数: 288
約数和(自身を含む): 94112928
約数和(自身を除く): 66084928

約数列:
[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 32, 35, 40, 44, 49, 50, 52, 55, 56, 65, 70, 77, 80, 88, 91, 98, 100, 104, 110, 112, 125, 130, 140, 143, 154, 160, 175, 176, 182, 196, 200, 208, 220, 224, 245, 250, 260, 275, 280, 286, 308, 325, 350, 352, 364, 385, 392, 400, 416, 440, 455, 490, 500, 520, 539, 550, 560, 572, 616, 637, 650, 700, 715, 728, 770, 784, 800, 875, 880, 910, 980, 1000, 1001, 1040, 1078, 1100, 1120, 1144, 1225, 1232, 1274, 1300, 1375, 1400, 1430, 1456, 1540, 1568, 1625, 1750, 1760, 1820, 1925, 1960, 2000, 2002, 2080, 2156, 2200, 2275, 2288, 2450, 2464, 2548, 2600, 2695, 2750, 2800, 2860, 2912, 3080, 3185, 3250, 3500, 3575, 3640, 3850, 3920, 4000, 4004, 4312, 4400, 4550, 4576, 4900, 5005, 5096, 5200, 5390, 5500, 5600, 5720, 6125, 6160, 6370, 6500, 7000, 7007, 7150, 7280, 7700, 7840, 8008, 8624, 8800, 9100, 9625, 9800, 10010, 10192, 10400, 10780, 11000, 11375, 11440, 12250, 12320, 12740, 13000, 13475, 14000, 14014, 14300, 14560, 15400, 15925, 16016, 17248, 17875, 18200, 19250, 19600, 20020, 20384, 21560, 22000, 22750, 22880, 24500, 25025, 25480, 26000, 26950, 28000, 28028, 28600, 30800, 31850, 32032, 35035, 35750, 36400, 38500, 39200, 40040, 43120, 44000, 45500, 49000, 50050, 50960, 52000, 53900, 56056, 57200, 61600, 63700, 67375, 70070, 71500, 72800, 77000, 79625, 80080, 86240, 91000, 98000, 100100, 101920, 107800, 112112, 114400, 125125, 127400, 134750, 140140, 143000, 154000, 159250, 160160, 175175, 182000, 196000, 200200, 215600, 224224, 250250, 254800, 269500, 280280, 286000, 308000, 318500, 350350, 364000, 400400, 431200, 500500, 509600, 539000, 560560, 572000, 637000, 700700, 800800, 875875, 1001000, 1078000, 1121120, 1274000, 1401400, 1751750, 2002000, 2156000, 2548000, 2802800, 3503500, 4004000, 5605600, 7007000, 14014000, 28028000]

約数ペア:
[(1, 28028000), (2, 14014000), (4, 7007000), (5, 5605600), (7, 4004000), (8, 3503500), (10, 2802800), (11, 2548000), (13, 2156000), (14, 2002000), (16, 1751750), (20, 1401400), (22, 1274000), (25, 1121120), (26, 1078000), (28, 1001000), (32, 875875), (35, 800800), (40, 700700), (44, 637000), (49, 572000), (50, 560560), (52, 539000), (55, 509600), (56, 500500), (65, 431200), (70, 400400), (77, 364000), (80, 350350), (88, 318500), (91, 308000), (98, 286000), (100, 280280), (104, 269500), (110, 254800), (112, 250250), (125, 224224), (130, 215600), (140, 200200), (143, 196000), (154, 182000), (160, 175175), (175, 160160), (176, 159250), (182, 154000), (196, 143000), (200, 140140), (208, 134750), (220, 127400), (224, 125125), (245, 114400), (250, 112112), (260, 107800), (275, 101920), (280, 100100), (286, 98000), (308, 91000), (325, 86240), (350, 80080), (352, 79625), (364, 77000), (385, 72800), (392, 71500), (400, 70070), (416, 67375), (440, 63700), (455, 61600), (490, 57200), (500, 56056), (520, 53900), (539, 52000), (550, 50960), (560, 50050), (572, 49000), (616, 45500), (637, 44000), (650, 43120), (700, 40040), (715, 39200), (728, 38500), (770, 36400), (784, 35750), (800, 35035), (875, 32032), (880, 31850), (910, 30800), (980, 28600), (1000, 28028), (1001, 28000), (1040, 26950), (1078, 26000), (1100, 25480), (1120, 25025), (1144, 24500), (1225, 22880), (1232, 22750), (1274, 22000), (1300, 21560), (1375, 20384), (1400, 20020), (1430, 19600), (1456, 19250), (1540, 18200), (1568, 17875), (1625, 17248), (1750, 16016), (1760, 15925), (1820, 15400), (1925, 14560), (1960, 14300), (2000, 14014), (2002, 14000), (2080, 13475), (2156, 13000), (2200, 12740), (2275, 12320), (2288, 12250), (2450, 11440), (2464, 11375), (2548, 11000), (2600, 10780), (2695, 10400), (2750, 10192), (2800, 10010), (2860, 9800), (2912, 9625), (3080, 9100), (3185, 8800), (3250, 8624), (3500, 8008), (3575, 7840), (3640, 7700), (3850, 7280), (3920, 7150), (4000, 7007), (4004, 7000), (4312, 6500), (4400, 6370), (4550, 6160), (4576, 6125), (4900, 5720), (5005, 5600), (5096, 5500), (5200, 5390)]

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