990320576

素因数分解:

$2^6\times 7^3\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:459

約数の個数: 112

約数和(自身を含む): 2313432000

約数和(自身を除く): 1323111424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 197, 224, 229, 343, 392, 394, 448, 458, 686, 784, 788, 916, 1372, 1379, 1568, 1576, 1603, 1832, 2744, 2758, 3136, 3152, 3206, 3664, 5488, 5516, 6304, 6412, 7328, 9653, 10976, 11032, 11221, 12608, 12824, 14656, 19306, 21952, 22064, 22442, 25648, 38612, 44128, 44884, 45113, 51296, 67571, 77224, 78547, 88256, 89768, 90226, 102592, 135142, 154448, 157094, 179536, 180452, 270284, 308896, 314188, 315791, 359072, 360904, 540568, 617792, 628376, 631582, 718144, 721808, 1081136, 1256752, 1263164, 1443616, 2162272, 2210537, 2513504, 2526328, 2887232, 4324544, 4421074, 5027008, 5052656, 8842148, 10105312, 15473759, 17684296, 20210624, 30947518, 35368592, 61895036, 70737184, 123790072, 141474368, 247580144, 495160288, 990320576]

約数ペア:

[(1, 990320576), (2, 495160288), (4, 247580144), (7, 141474368), (8, 123790072), (14, 70737184), (16, 61895036), (28, 35368592), (32, 30947518), (49, 20210624), (56, 17684296), (64, 15473759), (98, 10105312), (112, 8842148), (196, 5052656), (197, 5027008), (224, 4421074), (229, 4324544), (343, 2887232), (392, 2526328), (394, 2513504), (448, 2210537), (458, 2162272), (686, 1443616), (784, 1263164), (788, 1256752), (916, 1081136), (1372, 721808), (1379, 718144), (1568, 631582), (1576, 628376), (1603, 617792), (1832, 540568), (2744, 360904), (2758, 359072), (3136, 315791), (3152, 314188), (3206, 308896), (3664, 270284), (5488, 180452), (5516, 179536), (6304, 157094), (6412, 154448), (7328, 135142), (9653, 102592), (10976, 90226), (11032, 89768), (11221, 88256), (12608, 78547), (12824, 77224), (14656, 67571), (19306, 51296), (21952, 45113), (22064, 44884), (22442, 44128), (25648, 38612)]