21628800

素因数分解:

$2^7\times 3^2\times 5^2\times {\mathrm{751}}^1$

素因数の和:781

約数の個数: 144

約数和(自身を含む): 77279280

約数和(自身を除く): 55650480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 128, 144, 150, 160, 180, 192, 200, 225, 240, 288, 300, 320, 360, 384, 400, 450, 480, 576, 600, 640, 720, 751, 800, 900, 960, 1152, 1200, 1440, 1502, 1600, 1800, 1920, 2253, 2400, 2880, 3004, 3200, 3600, 3755, 4506, 4800, 5760, 6008, 6759, 7200, 7510, 9012, 9600, 11265, 12016, 13518, 14400, 15020, 18024, 18775, 22530, 24032, 27036, 28800, 30040, 33795, 36048, 37550, 45060, 48064, 54072, 56325, 60080, 67590, 72096, 75100, 90120, 96128, 108144, 112650, 120160, 135180, 144192, 150200, 168975, 180240, 216288, 225300, 240320, 270360, 288384, 300400, 337950, 360480, 432576, 450600, 480640, 540720, 600800, 675900, 720960, 865152, 901200, 1081440, 1201600, 1351800, 1441920, 1802400, 2162880, 2403200, 2703600, 3604800, 4325760, 5407200, 7209600, 10814400, 21628800]

約数ペア:

[(1, 21628800), (2, 10814400), (3, 7209600), (4, 5407200), (5, 4325760), (6, 3604800), (8, 2703600), (9, 2403200), (10, 2162880), (12, 1802400), (15, 1441920), (16, 1351800), (18, 1201600), (20, 1081440), (24, 901200), (25, 865152), (30, 720960), (32, 675900), (36, 600800), (40, 540720), (45, 480640), (48, 450600), (50, 432576), (60, 360480), (64, 337950), (72, 300400), (75, 288384), (80, 270360), (90, 240320), (96, 225300), (100, 216288), (120, 180240), (128, 168975), (144, 150200), (150, 144192), (160, 135180), (180, 120160), (192, 112650), (200, 108144), (225, 96128), (240, 90120), (288, 75100), (300, 72096), (320, 67590), (360, 60080), (384, 56325), (400, 54072), (450, 48064), (480, 45060), (576, 37550), (600, 36048), (640, 33795), (720, 30040), (751, 28800), (800, 27036), (900, 24032), (960, 22530), (1152, 18775), (1200, 18024), (1440, 15020), (1502, 14400), (1600, 13518), (1800, 12016), (1920, 11265), (2253, 9600), (2400, 9012), (2880, 7510), (3004, 7200), (3200, 6759), (3600, 6008), (3755, 5760), (4506, 4800)]