28287000

素因数分解:

$2^3\times 3^2\times 5^3\times 7^1\times {\mathrm{449}}^1$

素因数の和:483

約数の個数: 192

約数和(自身を含む): 109512000

約数和(自身を除く): 81225000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 125, 126, 140, 150, 168, 175, 180, 200, 210, 225, 250, 252, 280, 300, 315, 350, 360, 375, 420, 449, 450, 500, 504, 525, 600, 630, 700, 750, 840, 875, 898, 900, 1000, 1050, 1125, 1260, 1347, 1400, 1500, 1575, 1750, 1796, 1800, 2100, 2245, 2250, 2520, 2625, 2694, 3000, 3143, 3150, 3500, 3592, 4041, 4200, 4490, 4500, 5250, 5388, 6286, 6300, 6735, 7000, 7875, 8082, 8980, 9000, 9429, 10500, 10776, 11225, 12572, 12600, 13470, 15715, 15750, 16164, 17960, 18858, 20205, 21000, 22450, 25144, 26940, 28287, 31430, 31500, 32328, 33675, 37716, 40410, 44900, 47145, 53880, 56125, 56574, 62860, 63000, 67350, 75432, 78575, 80820, 89800, 94290, 101025, 112250, 113148, 125720, 134700, 141435, 157150, 161640, 168375, 188580, 202050, 224500, 226296, 235725, 269400, 282870, 314300, 336750, 377160, 392875, 404100, 449000, 471450, 505125, 565740, 628600, 673500, 707175, 785750, 808200, 942900, 1010250, 1131480, 1178625, 1347000, 1414350, 1571500, 1885800, 2020500, 2357250, 2828700, 3143000, 3535875, 4041000, 4714500, 5657400, 7071750, 9429000, 14143500, 28287000]

約数ペア:

[(1, 28287000), (2, 14143500), (3, 9429000), (4, 7071750), (5, 5657400), (6, 4714500), (7, 4041000), (8, 3535875), (9, 3143000), (10, 2828700), (12, 2357250), (14, 2020500), (15, 1885800), (18, 1571500), (20, 1414350), (21, 1347000), (24, 1178625), (25, 1131480), (28, 1010250), (30, 942900), (35, 808200), (36, 785750), (40, 707175), (42, 673500), (45, 628600), (50, 565740), (56, 505125), (60, 471450), (63, 449000), (70, 404100), (72, 392875), (75, 377160), (84, 336750), (90, 314300), (100, 282870), (105, 269400), (120, 235725), (125, 226296), (126, 224500), (140, 202050), (150, 188580), (168, 168375), (175, 161640), (180, 157150), (200, 141435), (210, 134700), (225, 125720), (250, 113148), (252, 112250), (280, 101025), (300, 94290), (315, 89800), (350, 80820), (360, 78575), (375, 75432), (420, 67350), (449, 63000), (450, 62860), (500, 56574), (504, 56125), (525, 53880), (600, 47145), (630, 44900), (700, 40410), (750, 37716), (840, 33675), (875, 32328), (898, 31500), (900, 31430), (1000, 28287), (1050, 26940), (1125, 25144), (1260, 22450), (1347, 21000), (1400, 20205), (1500, 18858), (1575, 17960), (1750, 16164), (1796, 15750), (1800, 15715), (2100, 13470), (2245, 12600), (2250, 12572), (2520, 11225), (2625, 10776), (2694, 10500), (3000, 9429), (3143, 9000), (3150, 8980), (3500, 8082), (3592, 7875), (4041, 7000), (4200, 6735), (4490, 6300), (4500, 6286), (5250, 5388)]