20489333760

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{63521}}^1$

素因数の和:63559

約数の個数: 264

約数和(自身を含む): 81138429216

約数和(自身を除く): 60649095456

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, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1024, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3072, 3360, 3584, 3840, 4032, 4480, 4608, 5040, 5120, 5376, 5760, 6720, 7168, 7680, 8064, 8960, 9216, 10080, 10752, 11520, 13440, 15360, 16128, 17920, 20160, 21504, 23040, 26880, 32256, 35840, 40320, 46080, 53760, 63521, 64512, 80640, 107520, 127042, 161280, 190563, 254084, 317605, 322560, 381126, 444647, 508168, 571689, 635210, 762252, 889294, 952815, 1016336, 1143378, 1270420, 1333941, 1524504, 1778588, 1905630, 2032672, 2223235, 2286756, 2540840, 2667882, 2858445, 3049008, 3557176, 3811260, 4001823, 4065344, 4446470, 4573512, 5081680, 5335764, 5716890, 6098016, 6669705, 7114352, 7622520, 8003646, 8130688, 8892940, 9147024, 10163360, 10671528, 11433780, 12196032, 13339410, 14228704, 15245040, 16007292, 16261376, 17785880, 18294048, 20009115, 20326720, 21343056, 22867560, 24392064, 26678820, 28457408, 30490080, 32014584, 32522752, 35571760, 36588096, 40018230, 40653440, 42686112, 45735120, 48784128, 53357640, 56914816, 60980160, 64029168, 65045504, 71143520, 73176192, 80036460, 81306880, 85372224, 91470240, 97568256, 106715280, 113829632, 121960320, 128058336, 142287040, 146352384, 160072920, 162613760, 170744448, 182940480, 195136512, 213430560, 227659264, 243920640, 256116672, 284574080, 292704768, 320145840, 325227520, 341488896, 365880960, 426861120, 455318528, 487841280, 512233344, 569148160, 585409536, 640291680, 682977792, 731761920, 853722240, 975682560, 1024466688, 1138296320, 1280583360, 1365955584, 1463523840, 1707444480, 2048933376, 2276592640, 2561166720, 2927047680, 3414888960, 4097866752, 5122333440, 6829777920, 10244666880, 20489333760]

約数ペア:

[(1, 20489333760), (2, 10244666880), (3, 6829777920), (4, 5122333440), (5, 4097866752), (6, 3414888960), (7, 2927047680), (8, 2561166720), (9, 2276592640), (10, 2048933376), (12, 1707444480), (14, 1463523840), (15, 1365955584), (16, 1280583360), (18, 1138296320), (20, 1024466688), (21, 975682560), (24, 853722240), (28, 731761920), (30, 682977792), (32, 640291680), (35, 585409536), (36, 569148160), (40, 512233344), (42, 487841280), (45, 455318528), (48, 426861120), (56, 365880960), (60, 341488896), (63, 325227520), (64, 320145840), (70, 292704768), (72, 284574080), (80, 256116672), (84, 243920640), (90, 227659264), (96, 213430560), (105, 195136512), (112, 182940480), (120, 170744448), (126, 162613760), (128, 160072920), (140, 146352384), (144, 142287040), (160, 128058336), (168, 121960320), (180, 113829632), (192, 106715280), (210, 97568256), (224, 91470240), (240, 85372224), (252, 81306880), (256, 80036460), (280, 73176192), (288, 71143520), (315, 65045504), (320, 64029168), (336, 60980160), (360, 56914816), (384, 53357640), (420, 48784128), (448, 45735120), (480, 42686112), (504, 40653440), (512, 40018230), (560, 36588096), (576, 35571760), (630, 32522752), (640, 32014584), (672, 30490080), (720, 28457408), (768, 26678820), (840, 24392064), (896, 22867560), (960, 21343056), (1008, 20326720), (1024, 20009115), (1120, 18294048), (1152, 17785880), (1260, 16261376), (1280, 16007292), (1344, 15245040), (1440, 14228704), (1536, 13339410), (1680, 12196032), (1792, 11433780), (1920, 10671528), (2016, 10163360), (2240, 9147024), (2304, 8892940), (2520, 8130688), (2560, 8003646), (2688, 7622520), (2880, 7114352), (3072, 6669705), (3360, 6098016), (3584, 5716890), (3840, 5335764), (4032, 5081680), (4480, 4573512), (4608, 4446470), (5040, 4065344), (5120, 4001823), (5376, 3811260), (5760, 3557176), (6720, 3049008), (7168, 2858445), (7680, 2667882), (8064, 2540840), (8960, 2286756), (9216, 2223235), (10080, 2032672), (10752, 1905630), (11520, 1778588), (13440, 1524504), (15360, 1333941), (16128, 1270420), (17920, 1143378), (20160, 1016336), (21504, 952815), (23040, 889294), (26880, 762252), (32256, 635210), (35840, 571689), (40320, 508168), (46080, 444647), (53760, 381126), (63521, 322560), (64512, 317605), (80640, 254084), (107520, 190563), (127042, 161280)]