19906560

素因数分解:

$2^{14}\times 3^5\times 5^1$

素因数の和:48

約数の個数: 180

約数和(自身を含む): 71563128

約数和(自身を除く): 51656568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 972, 1024, 1080, 1152, 1215, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 1944, 2048, 2160, 2304, 2430, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 3888, 4096, 4320, 4608, 4860, 5120, 5184, 5760, 6144, 6480, 6912, 7680, 7776, 8192, 8640, 9216, 9720, 10240, 10368, 11520, 12288, 12960, 13824, 15360, 15552, 16384, 17280, 18432, 19440, 20480, 20736, 23040, 24576, 25920, 27648, 30720, 31104, 34560, 36864, 38880, 40960, 41472, 46080, 49152, 51840, 55296, 61440, 62208, 69120, 73728, 77760, 81920, 82944, 92160, 103680, 110592, 122880, 124416, 138240, 147456, 155520, 165888, 184320, 207360, 221184, 245760, 248832, 276480, 311040, 331776, 368640, 414720, 442368, 497664, 552960, 622080, 663552, 737280, 829440, 995328, 1105920, 1244160, 1327104, 1658880, 1990656, 2211840, 2488320, 3317760, 3981312, 4976640, 6635520, 9953280, 19906560]

約数ペア:

[(1, 19906560), (2, 9953280), (3, 6635520), (4, 4976640), (5, 3981312), (6, 3317760), (8, 2488320), (9, 2211840), (10, 1990656), (12, 1658880), (15, 1327104), (16, 1244160), (18, 1105920), (20, 995328), (24, 829440), (27, 737280), (30, 663552), (32, 622080), (36, 552960), (40, 497664), (45, 442368), (48, 414720), (54, 368640), (60, 331776), (64, 311040), (72, 276480), (80, 248832), (81, 245760), (90, 221184), (96, 207360), (108, 184320), (120, 165888), (128, 155520), (135, 147456), (144, 138240), (160, 124416), (162, 122880), (180, 110592), (192, 103680), (216, 92160), (240, 82944), (243, 81920), (256, 77760), (270, 73728), (288, 69120), (320, 62208), (324, 61440), (360, 55296), (384, 51840), (405, 49152), (432, 46080), (480, 41472), (486, 40960), (512, 38880), (540, 36864), (576, 34560), (640, 31104), (648, 30720), (720, 27648), (768, 25920), (810, 24576), (864, 23040), (960, 20736), (972, 20480), (1024, 19440), (1080, 18432), (1152, 17280), (1215, 16384), (1280, 15552), (1296, 15360), (1440, 13824), (1536, 12960), (1620, 12288), (1728, 11520), (1920, 10368), (1944, 10240), (2048, 9720), (2160, 9216), (2304, 8640), (2430, 8192), (2560, 7776), (2592, 7680), (2880, 6912), (3072, 6480), (3240, 6144), (3456, 5760), (3840, 5184), (3888, 5120), (4096, 4860), (4320, 4608)]