1821035520

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{4391}}^1$

素因数の和:4428

約数の個数: 220

約数和(自身を含む): 6527047824

約数和(自身を除く): 4706012304

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, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 4320, 4391, 4608, 5120, 5184, 5760, 6480, 6912, 7680, 8640, 8782, 9216, 10368, 11520, 12960, 13173, 13824, 15360, 17280, 17564, 20736, 21955, 23040, 25920, 26346, 27648, 34560, 35128, 39519, 41472, 43910, 46080, 51840, 52692, 65865, 69120, 70256, 79038, 82944, 87820, 103680, 105384, 118557, 131730, 138240, 140512, 158076, 175640, 197595, 207360, 210768, 237114, 263460, 281024, 316152, 351280, 355671, 395190, 414720, 421536, 474228, 526920, 562048, 592785, 632304, 702560, 711342, 790380, 843072, 948456, 1053840, 1124096, 1185570, 1264608, 1405120, 1422684, 1580760, 1686144, 1778355, 1896912, 2107680, 2248192, 2371140, 2529216, 2810240, 2845368, 3161520, 3372288, 3556710, 3793824, 4215360, 4496384, 4742280, 5058432, 5620480, 5690736, 6323040, 6744576, 7113420, 7587648, 8430720, 9484560, 10116864, 11240960, 11381472, 12646080, 13489152, 14226840, 15175296, 16861440, 18969120, 20233728, 22481920, 22762944, 25292160, 28453680, 30350592, 33722880, 37938240, 40467456, 45525888, 50584320, 56907360, 60701184, 67445760, 75876480, 91051776, 101168640, 113814720, 121402368, 151752960, 182103552, 202337280, 227629440, 303505920, 364207104, 455258880, 607011840, 910517760, 1821035520]

約数ペア:

[(1, 1821035520), (2, 910517760), (3, 607011840), (4, 455258880), (5, 364207104), (6, 303505920), (8, 227629440), (9, 202337280), (10, 182103552), (12, 151752960), (15, 121402368), (16, 113814720), (18, 101168640), (20, 91051776), (24, 75876480), (27, 67445760), (30, 60701184), (32, 56907360), (36, 50584320), (40, 45525888), (45, 40467456), (48, 37938240), (54, 33722880), (60, 30350592), (64, 28453680), (72, 25292160), (80, 22762944), (81, 22481920), (90, 20233728), (96, 18969120), (108, 16861440), (120, 15175296), (128, 14226840), (135, 13489152), (144, 12646080), (160, 11381472), (162, 11240960), (180, 10116864), (192, 9484560), (216, 8430720), (240, 7587648), (256, 7113420), (270, 6744576), (288, 6323040), (320, 5690736), (324, 5620480), (360, 5058432), (384, 4742280), (405, 4496384), (432, 4215360), (480, 3793824), (512, 3556710), (540, 3372288), (576, 3161520), (640, 2845368), (648, 2810240), (720, 2529216), (768, 2371140), (810, 2248192), (864, 2107680), (960, 1896912), (1024, 1778355), (1080, 1686144), (1152, 1580760), (1280, 1422684), (1296, 1405120), (1440, 1264608), (1536, 1185570), (1620, 1124096), (1728, 1053840), (1920, 948456), (2160, 843072), (2304, 790380), (2560, 711342), (2592, 702560), (2880, 632304), (3072, 592785), (3240, 562048), (3456, 526920), (3840, 474228), (4320, 421536), (4391, 414720), (4608, 395190), (5120, 355671), (5184, 351280), (5760, 316152), (6480, 281024), (6912, 263460), (7680, 237114), (8640, 210768), (8782, 207360), (9216, 197595), (10368, 175640), (11520, 158076), (12960, 140512), (13173, 138240), (13824, 131730), (15360, 118557), (17280, 105384), (17564, 103680), (20736, 87820), (21955, 82944), (23040, 79038), (25920, 70256), (26346, 69120), (27648, 65865), (34560, 52692), (35128, 51840), (39519, 46080), (41472, 43910)]