21278910080

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{11131}}^1$

素因数の和:11282

約数の個数: 128

約数和(自身を含む): 53139715200

約数和(自身を除く): 31860805120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 103, 116, 128, 145, 160, 206, 232, 290, 320, 412, 464, 515, 580, 640, 824, 928, 1030, 1160, 1648, 1856, 2060, 2320, 2987, 3296, 3712, 4120, 4640, 5974, 6592, 8240, 9280, 11131, 11948, 13184, 14935, 16480, 18560, 22262, 23896, 29870, 32960, 44524, 47792, 55655, 59740, 65920, 89048, 95584, 111310, 119480, 178096, 191168, 222620, 238960, 322799, 356192, 382336, 445240, 477920, 645598, 712384, 890480, 955840, 1146493, 1291196, 1424768, 1613995, 1780960, 1911680, 2292986, 2582392, 3227990, 3561920, 4585972, 5164784, 5732465, 6455980, 7123840, 9171944, 10329568, 11464930, 12911960, 18343888, 20659136, 22929860, 25823920, 33248297, 36687776, 41318272, 45859720, 51647840, 66496594, 73375552, 91719440, 103295680, 132993188, 146751104, 166241485, 183438880, 206591360, 265986376, 332482970, 366877760, 531972752, 664965940, 733755520, 1063945504, 1329931880, 2127891008, 2659863760, 4255782016, 5319727520, 10639455040, 21278910080]

約数ペア:

[(1, 21278910080), (2, 10639455040), (4, 5319727520), (5, 4255782016), (8, 2659863760), (10, 2127891008), (16, 1329931880), (20, 1063945504), (29, 733755520), (32, 664965940), (40, 531972752), (58, 366877760), (64, 332482970), (80, 265986376), (103, 206591360), (116, 183438880), (128, 166241485), (145, 146751104), (160, 132993188), (206, 103295680), (232, 91719440), (290, 73375552), (320, 66496594), (412, 51647840), (464, 45859720), (515, 41318272), (580, 36687776), (640, 33248297), (824, 25823920), (928, 22929860), (1030, 20659136), (1160, 18343888), (1648, 12911960), (1856, 11464930), (2060, 10329568), (2320, 9171944), (2987, 7123840), (3296, 6455980), (3712, 5732465), (4120, 5164784), (4640, 4585972), (5974, 3561920), (6592, 3227990), (8240, 2582392), (9280, 2292986), (11131, 1911680), (11948, 1780960), (13184, 1613995), (14935, 1424768), (16480, 1291196), (18560, 1146493), (22262, 955840), (23896, 890480), (29870, 712384), (32960, 645598), (44524, 477920), (47792, 445240), (55655, 382336), (59740, 356192), (65920, 322799), (89048, 238960), (95584, 222620), (111310, 191168), (119480, 178096)]