990904320

素因数分解:

$2^{20}\times 3^3\times 5^1\times 7^1$

素因数の和:61

約数の個数: 336

約数和(自身を含む): 4026529920

約数和(自身を除く): 3035625600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 512, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1024, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1536, 1680, 1728, 1792, 1890, 1920, 2016, 2048, 2160, 2240, 2304, 2520, 2560, 2688, 2880, 3024, 3072, 3360, 3456, 3584, 3780, 3840, 4032, 4096, 4320, 4480, 4608, 5040, 5120, 5376, 5760, 6048, 6144, 6720, 6912, 7168, 7560, 7680, 8064, 8192, 8640, 8960, 9216, 10080, 10240, 10752, 11520, 12096, 12288, 13440, 13824, 14336, 15120, 15360, 16128, 16384, 17280, 17920, 18432, 20160, 20480, 21504, 23040, 24192, 24576, 26880, 27648, 28672, 30240, 30720, 32256, 32768, 34560, 35840, 36864, 40320, 40960, 43008, 46080, 48384, 49152, 53760, 55296, 57344, 60480, 61440, 64512, 65536, 69120, 71680, 73728, 80640, 81920, 86016, 92160, 96768, 98304, 107520, 110592, 114688, 120960, 122880, 129024, 131072, 138240, 143360, 147456, 161280, 163840, 172032, 184320, 193536, 196608, 215040, 221184, 229376, 241920, 245760, 258048, 262144, 276480, 286720, 294912, 322560, 327680, 344064, 368640, 387072, 393216, 430080, 442368, 458752, 483840, 491520, 516096, 524288, 552960, 573440, 589824, 645120, 655360, 688128, 737280, 774144, 786432, 860160, 884736, 917504, 967680, 983040, 1032192, 1048576, 1105920, 1146880, 1179648, 1290240, 1310720, 1376256, 1474560, 1548288, 1572864, 1720320, 1769472, 1835008, 1935360, 1966080, 2064384, 2211840, 2293760, 2359296, 2580480, 2621440, 2752512, 2949120, 3096576, 3145728, 3440640, 3538944, 3670016, 3870720, 3932160, 4128768, 4423680, 4587520, 4718592, 5160960, 5242880, 5505024, 5898240, 6193152, 6881280, 7077888, 7340032, 7741440, 7864320, 8257536, 8847360, 9175040, 9437184, 10321920, 11010048, 11796480, 12386304, 13762560, 14155776, 15482880, 15728640, 16515072, 17694720, 18350080, 20643840, 22020096, 23592960, 24772608, 27525120, 28311552, 30965760, 33030144, 35389440, 36700160, 41287680, 47185920, 49545216, 55050240, 61931520, 66060288, 70778880, 82575360, 99090432, 110100480, 123863040, 141557760, 165150720, 198180864, 247726080, 330301440, 495452160, 990904320]

約数ペア:

[(1, 990904320), (2, 495452160), (3, 330301440), (4, 247726080), (5, 198180864), (6, 165150720), (7, 141557760), (8, 123863040), (9, 110100480), (10, 99090432), (12, 82575360), (14, 70778880), (15, 66060288), (16, 61931520), (18, 55050240), (20, 49545216), (21, 47185920), (24, 41287680), (27, 36700160), (28, 35389440), (30, 33030144), (32, 30965760), (35, 28311552), (36, 27525120), (40, 24772608), (42, 23592960), (45, 22020096), (48, 20643840), (54, 18350080), (56, 17694720), (60, 16515072), (63, 15728640), (64, 15482880), (70, 14155776), (72, 13762560), (80, 12386304), (84, 11796480), (90, 11010048), (96, 10321920), (105, 9437184), (108, 9175040), (112, 8847360), (120, 8257536), (126, 7864320), (128, 7741440), (135, 7340032), (140, 7077888), (144, 6881280), (160, 6193152), (168, 5898240), (180, 5505024), (189, 5242880), (192, 5160960), (210, 4718592), (216, 4587520), (224, 4423680), (240, 4128768), (252, 3932160), (256, 3870720), (270, 3670016), (280, 3538944), (288, 3440640), (315, 3145728), (320, 3096576), (336, 2949120), (360, 2752512), (378, 2621440), (384, 2580480), (420, 2359296), (432, 2293760), (448, 2211840), (480, 2064384), (504, 1966080), (512, 1935360), (540, 1835008), (560, 1769472), (576, 1720320), (630, 1572864), (640, 1548288), (672, 1474560), (720, 1376256), (756, 1310720), (768, 1290240), (840, 1179648), (864, 1146880), (896, 1105920), (945, 1048576), (960, 1032192), (1008, 983040), (1024, 967680), (1080, 917504), (1120, 884736), (1152, 860160), (1260, 786432), (1280, 774144), (1344, 737280), (1440, 688128), (1512, 655360), (1536, 645120), (1680, 589824), (1728, 573440), (1792, 552960), (1890, 524288), (1920, 516096), (2016, 491520), (2048, 483840), (2160, 458752), (2240, 442368), (2304, 430080), (2520, 393216), (2560, 387072), (2688, 368640), (2880, 344064), (3024, 327680), (3072, 322560), (3360, 294912), (3456, 286720), (3584, 276480), (3780, 262144), (3840, 258048), (4032, 245760), (4096, 241920), (4320, 229376), (4480, 221184), (4608, 215040), (5040, 196608), (5120, 193536), (5376, 184320), (5760, 172032), (6048, 163840), (6144, 161280), (6720, 147456), (6912, 143360), (7168, 138240), (7560, 131072), (7680, 129024), (8064, 122880), (8192, 120960), (8640, 114688), (8960, 110592), (9216, 107520), (10080, 98304), (10240, 96768), (10752, 92160), (11520, 86016), (12096, 81920), (12288, 80640), (13440, 73728), (13824, 71680), (14336, 69120), (15120, 65536), (15360, 64512), (16128, 61440), (16384, 60480), (17280, 57344), (17920, 55296), (18432, 53760), (20160, 49152), (20480, 48384), (21504, 46080), (23040, 43008), (24192, 40960), (24576, 40320), (26880, 36864), (27648, 35840), (28672, 34560), (30240, 32768), (30720, 32256)]