551281920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{20509}}^1$

素因数の和:20540

約数の個数: 144

約数和(自身を含む): 2012277120

約数和(自身を除く): 1460995200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 20509, 26880, 41018, 61527, 82036, 102545, 123054, 143563, 164072, 205090, 246108, 287126, 307635, 328144, 410180, 430689, 492216, 574252, 615270, 656288, 717815, 820360, 861378, 984432, 1148504, 1230540, 1312576, 1435630, 1640720, 1722756, 1968864, 2153445, 2297008, 2461080, 2625152, 2871260, 3281440, 3445512, 3937728, 4306890, 4594016, 4922160, 5250304, 5742520, 6562880, 6891024, 7875456, 8613780, 9188032, 9844320, 11485040, 13125760, 13782048, 15750912, 17227560, 18376064, 19688640, 22970080, 26251520, 27564096, 34455120, 36752128, 39377280, 45940160, 55128192, 68910240, 78754560, 91880320, 110256384, 137820480, 183760640, 275640960, 551281920]

約数ペア:

[(1, 551281920), (2, 275640960), (3, 183760640), (4, 137820480), (5, 110256384), (6, 91880320), (7, 78754560), (8, 68910240), (10, 55128192), (12, 45940160), (14, 39377280), (15, 36752128), (16, 34455120), (20, 27564096), (21, 26251520), (24, 22970080), (28, 19688640), (30, 18376064), (32, 17227560), (35, 15750912), (40, 13782048), (42, 13125760), (48, 11485040), (56, 9844320), (60, 9188032), (64, 8613780), (70, 7875456), (80, 6891024), (84, 6562880), (96, 5742520), (105, 5250304), (112, 4922160), (120, 4594016), (128, 4306890), (140, 3937728), (160, 3445512), (168, 3281440), (192, 2871260), (210, 2625152), (224, 2461080), (240, 2297008), (256, 2153445), (280, 1968864), (320, 1722756), (336, 1640720), (384, 1435630), (420, 1312576), (448, 1230540), (480, 1148504), (560, 984432), (640, 861378), (672, 820360), (768, 717815), (840, 656288), (896, 615270), (960, 574252), (1120, 492216), (1280, 430689), (1344, 410180), (1680, 328144), (1792, 307635), (1920, 287126), (2240, 246108), (2688, 205090), (3360, 164072), (3840, 143563), (4480, 123054), (5376, 102545), (6720, 82036), (8960, 61527), (13440, 41018), (20509, 26880)]