81816241920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{19387}}^1$

素因数の和:19575

約数の個数: 288

約数和(自身を含む): 300546882048

約数和(自身を除く): 218730640128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 157, 160, 168, 192, 210, 224, 240, 256, 280, 314, 320, 336, 384, 420, 448, 471, 480, 560, 628, 640, 672, 768, 785, 840, 896, 942, 960, 1099, 1120, 1256, 1280, 1344, 1570, 1680, 1792, 1884, 1920, 2198, 2240, 2355, 2512, 2688, 3140, 3297, 3360, 3768, 3840, 4396, 4480, 4710, 5024, 5376, 5495, 6280, 6594, 6720, 7536, 8792, 8960, 9420, 10048, 10990, 12560, 13188, 13440, 15072, 16485, 17584, 18840, 19387, 20096, 21980, 25120, 26376, 26880, 30144, 32970, 35168, 37680, 38774, 40192, 43960, 50240, 52752, 58161, 60288, 65940, 70336, 75360, 77548, 87920, 96935, 100480, 105504, 116322, 120576, 131880, 135709, 140672, 150720, 155096, 175840, 193870, 200960, 211008, 232644, 263760, 271418, 281344, 290805, 301440, 310192, 351680, 387740, 407127, 422016, 465288, 527520, 542836, 581610, 602880, 620384, 678545, 703360, 775480, 814254, 844032, 930576, 1055040, 1085672, 1163220, 1240768, 1357090, 1406720, 1550960, 1628508, 1861152, 2035635, 2110080, 2171344, 2326440, 2481536, 2714180, 3043759, 3101920, 3257016, 3722304, 4071270, 4220160, 4342688, 4652880, 4963072, 5428360, 6087518, 6203840, 6514032, 7444608, 8142540, 8685376, 9131277, 9305760, 10856720, 12175036, 12407680, 13028064, 14889216, 15218795, 16285080, 17370752, 18262554, 18611520, 21306313, 21713440, 24350072, 24815360, 26056128, 30437590, 32570160, 34741504, 36525108, 37223040, 42612626, 43426880, 45656385, 48700144, 52112256, 60875180, 63918939, 65140320, 73050216, 74446080, 85225252, 86853760, 91312770, 97400288, 104224512, 106531565, 121750360, 127837878, 130280640, 146100432, 170450504, 173707520, 182625540, 194800576, 213063130, 243500720, 255675756, 260561280, 292200864, 319594695, 340901008, 365251080, 389601152, 426126260, 487001440, 511351512, 521122560, 584401728, 639189390, 681802016, 730502160, 779202304, 852252520, 974002880, 1022703024, 1168803456, 1278378780, 1363604032, 1461004320, 1704505040, 1948005760, 2045406048, 2337606912, 2556757560, 2727208064, 2922008640, 3409010080, 3896011520, 4090812096, 5113515120, 5454416128, 5844017280, 6818020160, 8181624192, 10227030240, 11688034560, 13636040320, 16363248384, 20454060480, 27272080640, 40908120960, 81816241920]

約数ペア:

[(1, 81816241920), (2, 40908120960), (3, 27272080640), (4, 20454060480), (5, 16363248384), (6, 13636040320), (7, 11688034560), (8, 10227030240), (10, 8181624192), (12, 6818020160), (14, 5844017280), (15, 5454416128), (16, 5113515120), (20, 4090812096), (21, 3896011520), (24, 3409010080), (28, 2922008640), (30, 2727208064), (32, 2556757560), (35, 2337606912), (40, 2045406048), (42, 1948005760), (48, 1704505040), (56, 1461004320), (60, 1363604032), (64, 1278378780), (70, 1168803456), (80, 1022703024), (84, 974002880), (96, 852252520), (105, 779202304), (112, 730502160), (120, 681802016), (128, 639189390), (140, 584401728), (157, 521122560), (160, 511351512), (168, 487001440), (192, 426126260), (210, 389601152), (224, 365251080), (240, 340901008), (256, 319594695), (280, 292200864), (314, 260561280), (320, 255675756), (336, 243500720), (384, 213063130), (420, 194800576), (448, 182625540), (471, 173707520), (480, 170450504), (560, 146100432), (628, 130280640), (640, 127837878), (672, 121750360), (768, 106531565), (785, 104224512), (840, 97400288), (896, 91312770), (942, 86853760), (960, 85225252), (1099, 74446080), (1120, 73050216), (1256, 65140320), (1280, 63918939), (1344, 60875180), (1570, 52112256), (1680, 48700144), (1792, 45656385), (1884, 43426880), (1920, 42612626), (2198, 37223040), (2240, 36525108), (2355, 34741504), (2512, 32570160), (2688, 30437590), (3140, 26056128), (3297, 24815360), (3360, 24350072), (3768, 21713440), (3840, 21306313), (4396, 18611520), (4480, 18262554), (4710, 17370752), (5024, 16285080), (5376, 15218795), (5495, 14889216), (6280, 13028064), (6594, 12407680), (6720, 12175036), (7536, 10856720), (8792, 9305760), (8960, 9131277), (9420, 8685376), (10048, 8142540), (10990, 7444608), (12560, 6514032), (13188, 6203840), (13440, 6087518), (15072, 5428360), (16485, 4963072), (17584, 4652880), (18840, 4342688), (19387, 4220160), (20096, 4071270), (21980, 3722304), (25120, 3257016), (26376, 3101920), (26880, 3043759), (30144, 2714180), (32970, 2481536), (35168, 2326440), (37680, 2171344), (38774, 2110080), (40192, 2035635), (43960, 1861152), (50240, 1628508), (52752, 1550960), (58161, 1406720), (60288, 1357090), (65940, 1240768), (70336, 1163220), (75360, 1085672), (77548, 1055040), (87920, 930576), (96935, 844032), (100480, 814254), (105504, 775480), (116322, 703360), (120576, 678545), (131880, 620384), (135709, 602880), (140672, 581610), (150720, 542836), (155096, 527520), (175840, 465288), (193870, 422016), (200960, 407127), (211008, 387740), (232644, 351680), (263760, 310192), (271418, 301440), (281344, 290805)]