21617280

素因数分解:

$2^7\times 3^5\times 5^1\times {\mathrm{139}}^1$

素因数の和:173

約数の個数: 192

約数和(自身を含む): 77968800

約数和(自身を除く): 56351520

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, 139, 144, 160, 162, 180, 192, 216, 240, 243, 270, 278, 288, 320, 324, 360, 384, 405, 417, 432, 480, 486, 540, 556, 576, 640, 648, 695, 720, 810, 834, 864, 960, 972, 1080, 1112, 1152, 1215, 1251, 1296, 1390, 1440, 1620, 1668, 1728, 1920, 1944, 2085, 2160, 2224, 2430, 2502, 2592, 2780, 2880, 3240, 3336, 3456, 3753, 3888, 4170, 4320, 4448, 4860, 5004, 5184, 5560, 5760, 6255, 6480, 6672, 7506, 7776, 8340, 8640, 8896, 9720, 10008, 10368, 11120, 11259, 12510, 12960, 13344, 15012, 15552, 16680, 17280, 17792, 18765, 19440, 20016, 22240, 22518, 25020, 25920, 26688, 30024, 31104, 33360, 33777, 37530, 38880, 40032, 44480, 45036, 50040, 51840, 53376, 56295, 60048, 66720, 67554, 75060, 77760, 80064, 88960, 90072, 100080, 112590, 120096, 133440, 135108, 150120, 155520, 160128, 168885, 180144, 200160, 225180, 240192, 266880, 270216, 300240, 337770, 360288, 400320, 450360, 480384, 540432, 600480, 675540, 720576, 800640, 900720, 1080864, 1200960, 1351080, 1441152, 1801440, 2161728, 2401920, 2702160, 3602880, 4323456, 5404320, 7205760, 10808640, 21617280]

約数ペア:

[(1, 21617280), (2, 10808640), (3, 7205760), (4, 5404320), (5, 4323456), (6, 3602880), (8, 2702160), (9, 2401920), (10, 2161728), (12, 1801440), (15, 1441152), (16, 1351080), (18, 1200960), (20, 1080864), (24, 900720), (27, 800640), (30, 720576), (32, 675540), (36, 600480), (40, 540432), (45, 480384), (48, 450360), (54, 400320), (60, 360288), (64, 337770), (72, 300240), (80, 270216), (81, 266880), (90, 240192), (96, 225180), (108, 200160), (120, 180144), (128, 168885), (135, 160128), (139, 155520), (144, 150120), (160, 135108), (162, 133440), (180, 120096), (192, 112590), (216, 100080), (240, 90072), (243, 88960), (270, 80064), (278, 77760), (288, 75060), (320, 67554), (324, 66720), (360, 60048), (384, 56295), (405, 53376), (417, 51840), (432, 50040), (480, 45036), (486, 44480), (540, 40032), (556, 38880), (576, 37530), (640, 33777), (648, 33360), (695, 31104), (720, 30024), (810, 26688), (834, 25920), (864, 25020), (960, 22518), (972, 22240), (1080, 20016), (1112, 19440), (1152, 18765), (1215, 17792), (1251, 17280), (1296, 16680), (1390, 15552), (1440, 15012), (1620, 13344), (1668, 12960), (1728, 12510), (1920, 11259), (1944, 11120), (2085, 10368), (2160, 10008), (2224, 9720), (2430, 8896), (2502, 8640), (2592, 8340), (2780, 7776), (2880, 7506), (3240, 6672), (3336, 6480), (3456, 6255), (3753, 5760), (3888, 5560), (4170, 5184), (4320, 5004), (4448, 4860)]