81025920

素因数分解:

$2^7\times 3^5\times 5^1\times {\mathrm{521}}^1$

素因数の和:555

約数の個数: 192

約数和(自身を含む): 290712240

約数和(自身を除く): 209686320

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, 243, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 521, 540, 576, 640, 648, 720, 810, 864, 960, 972, 1042, 1080, 1152, 1215, 1296, 1440, 1563, 1620, 1728, 1920, 1944, 2084, 2160, 2430, 2592, 2605, 2880, 3126, 3240, 3456, 3888, 4168, 4320, 4689, 4860, 5184, 5210, 5760, 6252, 6480, 7776, 7815, 8336, 8640, 9378, 9720, 10368, 10420, 12504, 12960, 14067, 15552, 15630, 16672, 17280, 18756, 19440, 20840, 23445, 25008, 25920, 28134, 31104, 31260, 33344, 37512, 38880, 41680, 42201, 46890, 50016, 51840, 56268, 62520, 66688, 70335, 75024, 77760, 83360, 84402, 93780, 100032, 112536, 125040, 126603, 140670, 150048, 155520, 166720, 168804, 187560, 200064, 211005, 225072, 250080, 253206, 281340, 300096, 333440, 337608, 375120, 422010, 450144, 500160, 506412, 562680, 600192, 633015, 675216, 750240, 844020, 900288, 1000320, 1012824, 1125360, 1266030, 1350432, 1500480, 1688040, 1800576, 2025648, 2250720, 2532060, 2700864, 3000960, 3376080, 4051296, 4501440, 5064120, 5401728, 6752160, 8102592, 9002880, 10128240, 13504320, 16205184, 20256480, 27008640, 40512960, 81025920]

約数ペア:

[(1, 81025920), (2, 40512960), (3, 27008640), (4, 20256480), (5, 16205184), (6, 13504320), (8, 10128240), (9, 9002880), (10, 8102592), (12, 6752160), (15, 5401728), (16, 5064120), (18, 4501440), (20, 4051296), (24, 3376080), (27, 3000960), (30, 2700864), (32, 2532060), (36, 2250720), (40, 2025648), (45, 1800576), (48, 1688040), (54, 1500480), (60, 1350432), (64, 1266030), (72, 1125360), (80, 1012824), (81, 1000320), (90, 900288), (96, 844020), (108, 750240), (120, 675216), (128, 633015), (135, 600192), (144, 562680), (160, 506412), (162, 500160), (180, 450144), (192, 422010), (216, 375120), (240, 337608), (243, 333440), (270, 300096), (288, 281340), (320, 253206), (324, 250080), (360, 225072), (384, 211005), (405, 200064), (432, 187560), (480, 168804), (486, 166720), (521, 155520), (540, 150048), (576, 140670), (640, 126603), (648, 125040), (720, 112536), (810, 100032), (864, 93780), (960, 84402), (972, 83360), (1042, 77760), (1080, 75024), (1152, 70335), (1215, 66688), (1296, 62520), (1440, 56268), (1563, 51840), (1620, 50016), (1728, 46890), (1920, 42201), (1944, 41680), (2084, 38880), (2160, 37512), (2430, 33344), (2592, 31260), (2605, 31104), (2880, 28134), (3126, 25920), (3240, 25008), (3456, 23445), (3888, 20840), (4168, 19440), (4320, 18756), (4689, 17280), (4860, 16672), (5184, 15630), (5210, 15552), (5760, 14067), (6252, 12960), (6480, 12504), (7776, 10420), (7815, 10368), (8336, 9720), (8640, 9378)]