38641920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 128036160

約数和(自身を除く): 89394240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 128, 145, 160, 174, 192, 232, 240, 256, 290, 320, 347, 348, 384, 435, 464, 480, 580, 640, 694, 696, 768, 870, 928, 960, 1041, 1160, 1280, 1388, 1392, 1735, 1740, 1856, 1920, 2082, 2320, 2776, 2784, 3470, 3480, 3712, 3840, 4164, 4640, 5205, 5552, 5568, 6940, 6960, 7424, 8328, 9280, 10063, 10410, 11104, 11136, 13880, 13920, 16656, 18560, 20126, 20820, 22208, 22272, 27760, 27840, 30189, 33312, 37120, 40252, 41640, 44416, 50315, 55520, 55680, 60378, 66624, 80504, 83280, 88832, 100630, 111040, 111360, 120756, 133248, 150945, 161008, 166560, 201260, 222080, 241512, 266496, 301890, 322016, 333120, 402520, 444160, 483024, 603780, 644032, 666240, 805040, 966048, 1207560, 1288064, 1332480, 1610080, 1932096, 2415120, 2576128, 3220160, 3864192, 4830240, 6440320, 7728384, 9660480, 12880640, 19320960, 38641920]

約数ペア:

[(1, 38641920), (2, 19320960), (3, 12880640), (4, 9660480), (5, 7728384), (6, 6440320), (8, 4830240), (10, 3864192), (12, 3220160), (15, 2576128), (16, 2415120), (20, 1932096), (24, 1610080), (29, 1332480), (30, 1288064), (32, 1207560), (40, 966048), (48, 805040), (58, 666240), (60, 644032), (64, 603780), (80, 483024), (87, 444160), (96, 402520), (116, 333120), (120, 322016), (128, 301890), (145, 266496), (160, 241512), (174, 222080), (192, 201260), (232, 166560), (240, 161008), (256, 150945), (290, 133248), (320, 120756), (347, 111360), (348, 111040), (384, 100630), (435, 88832), (464, 83280), (480, 80504), (580, 66624), (640, 60378), (694, 55680), (696, 55520), (768, 50315), (870, 44416), (928, 41640), (960, 40252), (1041, 37120), (1160, 33312), (1280, 30189), (1388, 27840), (1392, 27760), (1735, 22272), (1740, 22208), (1856, 20820), (1920, 20126), (2082, 18560), (2320, 16656), (2776, 13920), (2784, 13880), (3470, 11136), (3480, 11104), (3712, 10410), (3840, 10063), (4164, 9280), (4640, 8328), (5205, 7424), (5552, 6960), (5568, 6940)]