81725760

素因数分解:

$2^6\times 3^5\times 5^1\times {\mathrm{1051}}^1$

素因数の和:1083

約数の個数: 168

約数和(自身を含む): 291791136

約数和(自身を除く): 210065376

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, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 405, 432, 480, 486, 540, 576, 648, 720, 810, 864, 960, 972, 1051, 1080, 1215, 1296, 1440, 1620, 1728, 1944, 2102, 2160, 2430, 2592, 2880, 3153, 3240, 3888, 4204, 4320, 4860, 5184, 5255, 6306, 6480, 7776, 8408, 8640, 9459, 9720, 10510, 12612, 12960, 15552, 15765, 16816, 18918, 19440, 21020, 25224, 25920, 28377, 31530, 33632, 37836, 38880, 42040, 47295, 50448, 56754, 63060, 67264, 75672, 77760, 84080, 85131, 94590, 100896, 113508, 126120, 141885, 151344, 168160, 170262, 189180, 201792, 227016, 252240, 255393, 283770, 302688, 336320, 340524, 378360, 425655, 454032, 504480, 510786, 567540, 605376, 681048, 756720, 851310, 908064, 1008960, 1021572, 1135080, 1276965, 1362096, 1513440, 1702620, 1816128, 2043144, 2270160, 2553930, 2724192, 3026880, 3405240, 4086288, 4540320, 5107860, 5448384, 6810480, 8172576, 9080640, 10215720, 13620960, 16345152, 20431440, 27241920, 40862880, 81725760]

約数ペア:

[(1, 81725760), (2, 40862880), (3, 27241920), (4, 20431440), (5, 16345152), (6, 13620960), (8, 10215720), (9, 9080640), (10, 8172576), (12, 6810480), (15, 5448384), (16, 5107860), (18, 4540320), (20, 4086288), (24, 3405240), (27, 3026880), (30, 2724192), (32, 2553930), (36, 2270160), (40, 2043144), (45, 1816128), (48, 1702620), (54, 1513440), (60, 1362096), (64, 1276965), (72, 1135080), (80, 1021572), (81, 1008960), (90, 908064), (96, 851310), (108, 756720), (120, 681048), (135, 605376), (144, 567540), (160, 510786), (162, 504480), (180, 454032), (192, 425655), (216, 378360), (240, 340524), (243, 336320), (270, 302688), (288, 283770), (320, 255393), (324, 252240), (360, 227016), (405, 201792), (432, 189180), (480, 170262), (486, 168160), (540, 151344), (576, 141885), (648, 126120), (720, 113508), (810, 100896), (864, 94590), (960, 85131), (972, 84080), (1051, 77760), (1080, 75672), (1215, 67264), (1296, 63060), (1440, 56754), (1620, 50448), (1728, 47295), (1944, 42040), (2102, 38880), (2160, 37836), (2430, 33632), (2592, 31530), (2880, 28377), (3153, 25920), (3240, 25224), (3888, 21020), (4204, 19440), (4320, 18918), (4860, 16816), (5184, 15765), (5255, 15552), (6306, 12960), (6480, 12612), (7776, 10510), (8408, 9720), (8640, 9459)]