399248640

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{4951}}^1$

素因数の和:4985

約数の個数: 216

約数和(自身を含む): 1579014528

約数和(自身を除く): 1179765888

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 4951, 5040, 5376, 5760, 6720, 8064, 8960, 9902, 10080, 11520, 13440, 14853, 16128, 19804, 20160, 24755, 26880, 29706, 34657, 39608, 40320, 44559, 49510, 59412, 69314, 74265, 79216, 80640, 89118, 99020, 103971, 118824, 138628, 148530, 158432, 173285, 178236, 198040, 207942, 222795, 237648, 277256, 297060, 311913, 316864, 346570, 356472, 396080, 415884, 445590, 475296, 519855, 554512, 594120, 623826, 633728, 693140, 712944, 792160, 831768, 891180, 950592, 1039710, 1109024, 1188240, 1247652, 1267456, 1386280, 1425888, 1559565, 1584320, 1663536, 1782360, 1901184, 2079420, 2218048, 2376480, 2495304, 2772560, 2851776, 3119130, 3168640, 3327072, 3564720, 3802368, 4158840, 4436096, 4752960, 4990608, 5545120, 5703552, 6238260, 6337280, 6654144, 7129440, 8317680, 8872192, 9505920, 9981216, 11090240, 11407104, 12476520, 13308288, 14258880, 16635360, 19011840, 19962432, 22180480, 24953040, 26616576, 28517760, 33270720, 39924864, 44360960, 49906080, 57035520, 66541440, 79849728, 99812160, 133082880, 199624320, 399248640]

約数ペア:

[(1, 399248640), (2, 199624320), (3, 133082880), (4, 99812160), (5, 79849728), (6, 66541440), (7, 57035520), (8, 49906080), (9, 44360960), (10, 39924864), (12, 33270720), (14, 28517760), (15, 26616576), (16, 24953040), (18, 22180480), (20, 19962432), (21, 19011840), (24, 16635360), (28, 14258880), (30, 13308288), (32, 12476520), (35, 11407104), (36, 11090240), (40, 9981216), (42, 9505920), (45, 8872192), (48, 8317680), (56, 7129440), (60, 6654144), (63, 6337280), (64, 6238260), (70, 5703552), (72, 5545120), (80, 4990608), (84, 4752960), (90, 4436096), (96, 4158840), (105, 3802368), (112, 3564720), (120, 3327072), (126, 3168640), (128, 3119130), (140, 2851776), (144, 2772560), (160, 2495304), (168, 2376480), (180, 2218048), (192, 2079420), (210, 1901184), (224, 1782360), (240, 1663536), (252, 1584320), (256, 1559565), (280, 1425888), (288, 1386280), (315, 1267456), (320, 1247652), (336, 1188240), (360, 1109024), (384, 1039710), (420, 950592), (448, 891180), (480, 831768), (504, 792160), (560, 712944), (576, 693140), (630, 633728), (640, 623826), (672, 594120), (720, 554512), (768, 519855), (840, 475296), (896, 445590), (960, 415884), (1008, 396080), (1120, 356472), (1152, 346570), (1260, 316864), (1280, 311913), (1344, 297060), (1440, 277256), (1680, 237648), (1792, 222795), (1920, 207942), (2016, 198040), (2240, 178236), (2304, 173285), (2520, 158432), (2688, 148530), (2880, 138628), (3360, 118824), (3840, 103971), (4032, 99020), (4480, 89118), (4951, 80640), (5040, 79216), (5376, 74265), (5760, 69314), (6720, 59412), (8064, 49510), (8960, 44559), (9902, 40320), (10080, 39608), (11520, 34657), (13440, 29706), (14853, 26880), (16128, 24755), (19804, 20160)]