1987378680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{24391}}^1$

素因数の和:24509

約数の個数: 128

約数和(自身を含む): 6884398080

約数和(自身を除く): 4897019400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 97, 105, 120, 140, 168, 194, 210, 280, 291, 388, 420, 485, 582, 679, 776, 840, 970, 1164, 1358, 1455, 1940, 2037, 2328, 2716, 2910, 3395, 3880, 4074, 5432, 5820, 6790, 8148, 10185, 11640, 13580, 16296, 20370, 24391, 27160, 40740, 48782, 73173, 81480, 97564, 121955, 146346, 170737, 195128, 243910, 292692, 341474, 365865, 487820, 512211, 585384, 682948, 731730, 853685, 975640, 1024422, 1365896, 1463460, 1707370, 2048844, 2365927, 2561055, 2926920, 3414740, 4097688, 4731854, 5122110, 6829480, 7097781, 9463708, 10244220, 11829635, 14195562, 16561489, 18927416, 20488440, 23659270, 28391124, 33122978, 35488905, 47318540, 49684467, 56782248, 66245956, 70977810, 82807445, 94637080, 99368934, 132491912, 141955620, 165614890, 198737868, 248422335, 283911240, 331229780, 397475736, 496844670, 662459560, 993689340, 1987378680]

約数ペア:

[(1, 1987378680), (2, 993689340), (3, 662459560), (4, 496844670), (5, 397475736), (6, 331229780), (7, 283911240), (8, 248422335), (10, 198737868), (12, 165614890), (14, 141955620), (15, 132491912), (20, 99368934), (21, 94637080), (24, 82807445), (28, 70977810), (30, 66245956), (35, 56782248), (40, 49684467), (42, 47318540), (56, 35488905), (60, 33122978), (70, 28391124), (84, 23659270), (97, 20488440), (105, 18927416), (120, 16561489), (140, 14195562), (168, 11829635), (194, 10244220), (210, 9463708), (280, 7097781), (291, 6829480), (388, 5122110), (420, 4731854), (485, 4097688), (582, 3414740), (679, 2926920), (776, 2561055), (840, 2365927), (970, 2048844), (1164, 1707370), (1358, 1463460), (1455, 1365896), (1940, 1024422), (2037, 975640), (2328, 853685), (2716, 731730), (2910, 682948), (3395, 585384), (3880, 512211), (4074, 487820), (5432, 365865), (5820, 341474), (6790, 292692), (8148, 243910), (10185, 195128), (11640, 170737), (13580, 146346), (16296, 121955), (20370, 97564), (24391, 81480), (27160, 73173), (40740, 48782)]