1612800

素因数分解:

$2^{10}\times 3^2\times 5^2\times 7^1$

素因数の和:43

約数の個数: 198

約数和(自身を含む): 6599528

約数和(自身を除く): 4986728

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, 128, 140, 144, 150, 160, 168, 175, 180, 192, 200, 210, 224, 225, 240, 252, 256, 280, 288, 300, 315, 320, 336, 350, 360, 384, 400, 420, 448, 450, 480, 504, 512, 525, 560, 576, 600, 630, 640, 672, 700, 720, 768, 800, 840, 896, 900, 960, 1008, 1024, 1050, 1120, 1152, 1200, 1260, 1280, 1344, 1400, 1440, 1536, 1575, 1600, 1680, 1792, 1800, 1920, 2016, 2100, 2240, 2304, 2400, 2520, 2560, 2688, 2800, 2880, 3072, 3150, 3200, 3360, 3584, 3600, 3840, 4032, 4200, 4480, 4608, 4800, 5040, 5120, 5376, 5600, 5760, 6300, 6400, 6720, 7168, 7200, 7680, 8064, 8400, 8960, 9216, 9600, 10080, 10752, 11200, 11520, 12600, 12800, 13440, 14400, 15360, 16128, 16800, 17920, 19200, 20160, 21504, 22400, 23040, 25200, 25600, 26880, 28800, 32256, 33600, 35840, 38400, 40320, 44800, 46080, 50400, 53760, 57600, 64512, 67200, 76800, 80640, 89600, 100800, 107520, 115200, 134400, 161280, 179200, 201600, 230400, 268800, 322560, 403200, 537600, 806400, 1612800]

約数ペア:

[(1, 1612800), (2, 806400), (3, 537600), (4, 403200), (5, 322560), (6, 268800), (7, 230400), (8, 201600), (9, 179200), (10, 161280), (12, 134400), (14, 115200), (15, 107520), (16, 100800), (18, 89600), (20, 80640), (21, 76800), (24, 67200), (25, 64512), (28, 57600), (30, 53760), (32, 50400), (35, 46080), (36, 44800), (40, 40320), (42, 38400), (45, 35840), (48, 33600), (50, 32256), (56, 28800), (60, 26880), (63, 25600), (64, 25200), (70, 23040), (72, 22400), (75, 21504), (80, 20160), (84, 19200), (90, 17920), (96, 16800), (100, 16128), (105, 15360), (112, 14400), (120, 13440), (126, 12800), (128, 12600), (140, 11520), (144, 11200), (150, 10752), (160, 10080), (168, 9600), (175, 9216), (180, 8960), (192, 8400), (200, 8064), (210, 7680), (224, 7200), (225, 7168), (240, 6720), (252, 6400), (256, 6300), (280, 5760), (288, 5600), (300, 5376), (315, 5120), (320, 5040), (336, 4800), (350, 4608), (360, 4480), (384, 4200), (400, 4032), (420, 3840), (448, 3600), (450, 3584), (480, 3360), (504, 3200), (512, 3150), (525, 3072), (560, 2880), (576, 2800), (600, 2688), (630, 2560), (640, 2520), (672, 2400), (700, 2304), (720, 2240), (768, 2100), (800, 2016), (840, 1920), (896, 1800), (900, 1792), (960, 1680), (1008, 1600), (1024, 1575), (1050, 1536), (1120, 1440), (1152, 1400), (1200, 1344), (1260, 1280)]