19857600

素因数分解:

$2^6\times 3^2\times 5^2\times 7^1\times {\mathrm{197}}^1$

素因数の和:232

約数の個数: 252

約数和(自身を含む): 81070704

約数和(自身を除く): 61213104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 64, 70, 72, 75, 80, 84, 90, 96, 100, 105, 112, 120, 126, 140, 144, 150, 160, 168, 175, 180, 192, 197, 200, 210, 224, 225, 240, 252, 280, 288, 300, 315, 320, 336, 350, 360, 394, 400, 420, 448, 450, 480, 504, 525, 560, 576, 591, 600, 630, 672, 700, 720, 788, 800, 840, 900, 960, 985, 1008, 1050, 1120, 1182, 1200, 1260, 1344, 1379, 1400, 1440, 1575, 1576, 1600, 1680, 1773, 1800, 1970, 2016, 2100, 2240, 2364, 2400, 2520, 2758, 2800, 2880, 2955, 3150, 3152, 3360, 3546, 3600, 3940, 4032, 4137, 4200, 4728, 4800, 4925, 5040, 5516, 5600, 5910, 6300, 6304, 6720, 6895, 7092, 7200, 7880, 8274, 8400, 8865, 9456, 9850, 10080, 11032, 11200, 11820, 12411, 12600, 12608, 13790, 14184, 14400, 14775, 15760, 16548, 16800, 17730, 18912, 19700, 20160, 20685, 22064, 23640, 24822, 25200, 27580, 28368, 29550, 31520, 33096, 33600, 34475, 35460, 37824, 39400, 41370, 44128, 44325, 47280, 49644, 50400, 55160, 56736, 59100, 62055, 63040, 66192, 68950, 70920, 78800, 82740, 88256, 88650, 94560, 99288, 100800, 103425, 110320, 113472, 118200, 124110, 132384, 137900, 141840, 157600, 165480, 177300, 189120, 198576, 206850, 220640, 236400, 248220, 264768, 275800, 283680, 310275, 315200, 330960, 354600, 397152, 413700, 441280, 472800, 496440, 551600, 567360, 620550, 661920, 709200, 794304, 827400, 945600, 992880, 1103200, 1241100, 1323840, 1418400, 1654800, 1985760, 2206400, 2482200, 2836800, 3309600, 3971520, 4964400, 6619200, 9928800, 19857600]

約数ペア:

[(1, 19857600), (2, 9928800), (3, 6619200), (4, 4964400), (5, 3971520), (6, 3309600), (7, 2836800), (8, 2482200), (9, 2206400), (10, 1985760), (12, 1654800), (14, 1418400), (15, 1323840), (16, 1241100), (18, 1103200), (20, 992880), (21, 945600), (24, 827400), (25, 794304), (28, 709200), (30, 661920), (32, 620550), (35, 567360), (36, 551600), (40, 496440), (42, 472800), (45, 441280), (48, 413700), (50, 397152), (56, 354600), (60, 330960), (63, 315200), (64, 310275), (70, 283680), (72, 275800), (75, 264768), (80, 248220), (84, 236400), (90, 220640), (96, 206850), (100, 198576), (105, 189120), (112, 177300), (120, 165480), (126, 157600), (140, 141840), (144, 137900), (150, 132384), (160, 124110), (168, 118200), (175, 113472), (180, 110320), (192, 103425), (197, 100800), (200, 99288), (210, 94560), (224, 88650), (225, 88256), (240, 82740), (252, 78800), (280, 70920), (288, 68950), (300, 66192), (315, 63040), (320, 62055), (336, 59100), (350, 56736), (360, 55160), (394, 50400), (400, 49644), (420, 47280), (448, 44325), (450, 44128), (480, 41370), (504, 39400), (525, 37824), (560, 35460), (576, 34475), (591, 33600), (600, 33096), (630, 31520), (672, 29550), (700, 28368), (720, 27580), (788, 25200), (800, 24822), (840, 23640), (900, 22064), (960, 20685), (985, 20160), (1008, 19700), (1050, 18912), (1120, 17730), (1182, 16800), (1200, 16548), (1260, 15760), (1344, 14775), (1379, 14400), (1400, 14184), (1440, 13790), (1575, 12608), (1576, 12600), (1600, 12411), (1680, 11820), (1773, 11200), (1800, 11032), (1970, 10080), (2016, 9850), (2100, 9456), (2240, 8865), (2364, 8400), (2400, 8274), (2520, 7880), (2758, 7200), (2800, 7092), (2880, 6895), (2955, 6720), (3150, 6304), (3152, 6300), (3360, 5910), (3546, 5600), (3600, 5516), (3940, 5040), (4032, 4925), (4137, 4800), (4200, 4728)]