21207600

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:204

約数の個数: 180

約数和(自身を含む): 75857496

約数和(自身を除く): 54649896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 43, 45, 48, 50, 60, 72, 75, 80, 86, 90, 100, 120, 129, 137, 144, 150, 172, 180, 200, 215, 225, 240, 258, 274, 300, 344, 360, 387, 400, 411, 430, 450, 516, 548, 600, 645, 685, 688, 720, 774, 822, 860, 900, 1032, 1075, 1096, 1200, 1233, 1290, 1370, 1548, 1644, 1720, 1800, 1935, 2055, 2064, 2150, 2192, 2466, 2580, 2740, 3096, 3225, 3288, 3425, 3440, 3600, 3870, 4110, 4300, 4932, 5160, 5480, 5891, 6165, 6192, 6450, 6576, 6850, 7740, 8220, 8600, 9675, 9864, 10275, 10320, 10960, 11782, 12330, 12900, 13700, 15480, 16440, 17200, 17673, 19350, 19728, 20550, 23564, 24660, 25800, 27400, 29455, 30825, 30960, 32880, 35346, 38700, 41100, 47128, 49320, 51600, 53019, 54800, 58910, 61650, 70692, 77400, 82200, 88365, 94256, 98640, 106038, 117820, 123300, 141384, 147275, 154800, 164400, 176730, 212076, 235640, 246600, 265095, 282768, 294550, 353460, 424152, 441825, 471280, 493200, 530190, 589100, 706920, 848304, 883650, 1060380, 1178200, 1325475, 1413840, 1767300, 2120760, 2356400, 2650950, 3534600, 4241520, 5301900, 7069200, 10603800, 21207600]

約数ペア:

[(1, 21207600), (2, 10603800), (3, 7069200), (4, 5301900), (5, 4241520), (6, 3534600), (8, 2650950), (9, 2356400), (10, 2120760), (12, 1767300), (15, 1413840), (16, 1325475), (18, 1178200), (20, 1060380), (24, 883650), (25, 848304), (30, 706920), (36, 589100), (40, 530190), (43, 493200), (45, 471280), (48, 441825), (50, 424152), (60, 353460), (72, 294550), (75, 282768), (80, 265095), (86, 246600), (90, 235640), (100, 212076), (120, 176730), (129, 164400), (137, 154800), (144, 147275), (150, 141384), (172, 123300), (180, 117820), (200, 106038), (215, 98640), (225, 94256), (240, 88365), (258, 82200), (274, 77400), (300, 70692), (344, 61650), (360, 58910), (387, 54800), (400, 53019), (411, 51600), (430, 49320), (450, 47128), (516, 41100), (548, 38700), (600, 35346), (645, 32880), (685, 30960), (688, 30825), (720, 29455), (774, 27400), (822, 25800), (860, 24660), (900, 23564), (1032, 20550), (1075, 19728), (1096, 19350), (1200, 17673), (1233, 17200), (1290, 16440), (1370, 15480), (1548, 13700), (1644, 12900), (1720, 12330), (1800, 11782), (1935, 10960), (2055, 10320), (2064, 10275), (2150, 9864), (2192, 9675), (2466, 8600), (2580, 8220), (2740, 7740), (3096, 6850), (3225, 6576), (3288, 6450), (3425, 6192), (3440, 6165), (3600, 5891), (3870, 5480), (4110, 5160), (4300, 4932)]