18821000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 50544000

約数和(自身を除く): 31723000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 29, 40, 44, 50, 55, 58, 59, 88, 100, 110, 116, 118, 125, 145, 200, 220, 232, 236, 250, 275, 290, 295, 319, 440, 472, 500, 550, 580, 590, 638, 649, 725, 1000, 1100, 1160, 1180, 1276, 1298, 1375, 1450, 1475, 1595, 1711, 2200, 2360, 2552, 2596, 2750, 2900, 2950, 3190, 3245, 3422, 3625, 5192, 5500, 5800, 5900, 6380, 6490, 6844, 7250, 7375, 7975, 8555, 11000, 11800, 12760, 12980, 13688, 14500, 14750, 15950, 16225, 17110, 18821, 25960, 29000, 29500, 31900, 32450, 34220, 37642, 39875, 42775, 59000, 63800, 64900, 68440, 75284, 79750, 81125, 85550, 94105, 129800, 150568, 159500, 162250, 171100, 188210, 213875, 319000, 324500, 342200, 376420, 427750, 470525, 649000, 752840, 855500, 941050, 1711000, 1882100, 2352625, 3764200, 4705250, 9410500, 18821000]

約数ペア:

[(1, 18821000), (2, 9410500), (4, 4705250), (5, 3764200), (8, 2352625), (10, 1882100), (11, 1711000), (20, 941050), (22, 855500), (25, 752840), (29, 649000), (40, 470525), (44, 427750), (50, 376420), (55, 342200), (58, 324500), (59, 319000), (88, 213875), (100, 188210), (110, 171100), (116, 162250), (118, 159500), (125, 150568), (145, 129800), (200, 94105), (220, 85550), (232, 81125), (236, 79750), (250, 75284), (275, 68440), (290, 64900), (295, 63800), (319, 59000), (440, 42775), (472, 39875), (500, 37642), (550, 34220), (580, 32450), (590, 31900), (638, 29500), (649, 29000), (725, 25960), (1000, 18821), (1100, 17110), (1160, 16225), (1180, 15950), (1276, 14750), (1298, 14500), (1375, 13688), (1450, 12980), (1475, 12760), (1595, 11800), (1711, 11000), (2200, 8555), (2360, 7975), (2552, 7375), (2596, 7250), (2750, 6844), (2900, 6490), (2950, 6380), (3190, 5900), (3245, 5800), (3422, 5500), (3625, 5192)]