320009984

素因数分解:

$2^8\times 7^2\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:390

約数の個数: 108

約数和(自身を含む): 753573744

約数和(自身を除く): 433563760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 97, 98, 112, 128, 194, 196, 224, 256, 263, 388, 392, 448, 526, 679, 776, 784, 896, 1052, 1358, 1552, 1568, 1792, 1841, 2104, 2716, 3104, 3136, 3682, 4208, 4753, 5432, 6208, 6272, 7364, 8416, 9506, 10864, 12416, 12544, 12887, 14728, 16832, 19012, 21728, 24832, 25511, 25774, 29456, 33664, 38024, 43456, 51022, 51548, 58912, 67328, 76048, 86912, 102044, 103096, 117824, 152096, 173824, 178577, 204088, 206192, 235648, 304192, 357154, 408176, 412384, 471296, 608384, 714308, 816352, 824768, 1216768, 1250039, 1428616, 1632704, 1649536, 2500078, 2857232, 3265408, 3299072, 5000156, 5714464, 6530816, 10000312, 11428928, 20000624, 22857856, 40001248, 45715712, 80002496, 160004992, 320009984]

約数ペア:

[(1, 320009984), (2, 160004992), (4, 80002496), (7, 45715712), (8, 40001248), (14, 22857856), (16, 20000624), (28, 11428928), (32, 10000312), (49, 6530816), (56, 5714464), (64, 5000156), (97, 3299072), (98, 3265408), (112, 2857232), (128, 2500078), (194, 1649536), (196, 1632704), (224, 1428616), (256, 1250039), (263, 1216768), (388, 824768), (392, 816352), (448, 714308), (526, 608384), (679, 471296), (776, 412384), (784, 408176), (896, 357154), (1052, 304192), (1358, 235648), (1552, 206192), (1568, 204088), (1792, 178577), (1841, 173824), (2104, 152096), (2716, 117824), (3104, 103096), (3136, 102044), (3682, 86912), (4208, 76048), (4753, 67328), (5432, 58912), (6208, 51548), (6272, 51022), (7364, 43456), (8416, 38024), (9506, 33664), (10864, 29456), (12416, 25774), (12544, 25511), (12887, 24832), (14728, 21728), (16832, 19012)]