20513309040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{581443}}^1$

素因数の和:581476

約数の個数: 180

約数和(自身を含む): 80138100744

約数和(自身を除く): 59624791704

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 35280, 581443, 1162886, 1744329, 2325772, 2907215, 3488658, 4070101, 4651544, 5232987, 5814430, 6977316, 8140202, 8721645, 9303088, 10465974, 11628860, 12210303, 13954632, 16280404, 17443290, 20350505, 20931948, 23257720, 24420606, 26164935, 27909264, 28490707, 32560808, 34886580, 36630909, 40701010, 41863896, 46515440, 48841212, 52329870, 56981414, 61051515, 65121616, 69773160, 73261818, 81402020, 83727792, 85472121, 97682424, 104659740, 113962828, 122103030, 139546320, 142453535, 146523636, 162804040, 170944242, 183154545, 195364848, 209319480, 227925656, 244206060, 256416363, 284907070, 293047272, 325608080, 341888484, 366309090, 418638960, 427360605, 455851312, 488412120, 512832726, 569814140, 586094544, 683776968, 732618180, 854721210, 976824240, 1025665452, 1139628280, 1282081815, 1367553936, 1465236360, 1709442420, 2051330904, 2279256560, 2564163630, 2930472720, 3418884840, 4102661808, 5128327260, 6837769680, 10256654520, 20513309040]

約数ペア:

[(1, 20513309040), (2, 10256654520), (3, 6837769680), (4, 5128327260), (5, 4102661808), (6, 3418884840), (7, 2930472720), (8, 2564163630), (9, 2279256560), (10, 2051330904), (12, 1709442420), (14, 1465236360), (15, 1367553936), (16, 1282081815), (18, 1139628280), (20, 1025665452), (21, 976824240), (24, 854721210), (28, 732618180), (30, 683776968), (35, 586094544), (36, 569814140), (40, 512832726), (42, 488412120), (45, 455851312), (48, 427360605), (49, 418638960), (56, 366309090), (60, 341888484), (63, 325608080), (70, 293047272), (72, 284907070), (80, 256416363), (84, 244206060), (90, 227925656), (98, 209319480), (105, 195364848), (112, 183154545), (120, 170944242), (126, 162804040), (140, 146523636), (144, 142453535), (147, 139546320), (168, 122103030), (180, 113962828), (196, 104659740), (210, 97682424), (240, 85472121), (245, 83727792), (252, 81402020), (280, 73261818), (294, 69773160), (315, 65121616), (336, 61051515), (360, 56981414), (392, 52329870), (420, 48841212), (441, 46515440), (490, 41863896), (504, 40701010), (560, 36630909), (588, 34886580), (630, 32560808), (720, 28490707), (735, 27909264), (784, 26164935), (840, 24420606), (882, 23257720), (980, 20931948), (1008, 20350505), (1176, 17443290), (1260, 16280404), (1470, 13954632), (1680, 12210303), (1764, 11628860), (1960, 10465974), (2205, 9303088), (2352, 8721645), (2520, 8140202), (2940, 6977316), (3528, 5814430), (3920, 5232987), (4410, 4651544), (5040, 4070101), (5880, 3488658), (7056, 2907215), (8820, 2325772), (11760, 1744329), (17640, 1162886), (35280, 581443)]