399123456

素因数分解:

$2^{10}\times 3^1\times {\mathrm{173}}^1\times {\mathrm{751}}^1$

素因数の和:947

約数の個数: 88

約数和(自身を含む): 1071383424

約数和(自身を除く): 672259968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 173, 192, 256, 346, 384, 512, 519, 692, 751, 768, 1024, 1038, 1384, 1502, 1536, 2076, 2253, 2768, 3004, 3072, 4152, 4506, 5536, 6008, 8304, 9012, 11072, 12016, 16608, 18024, 22144, 24032, 33216, 36048, 44288, 48064, 66432, 72096, 88576, 96128, 129923, 132864, 144192, 177152, 192256, 259846, 265728, 288384, 384512, 389769, 519692, 531456, 576768, 769024, 779538, 1039384, 1153536, 1559076, 2078768, 2307072, 3118152, 4157536, 6236304, 8315072, 12472608, 16630144, 24945216, 33260288, 49890432, 66520576, 99780864, 133041152, 199561728, 399123456]

約数ペア:

[(1, 399123456), (2, 199561728), (3, 133041152), (4, 99780864), (6, 66520576), (8, 49890432), (12, 33260288), (16, 24945216), (24, 16630144), (32, 12472608), (48, 8315072), (64, 6236304), (96, 4157536), (128, 3118152), (173, 2307072), (192, 2078768), (256, 1559076), (346, 1153536), (384, 1039384), (512, 779538), (519, 769024), (692, 576768), (751, 531456), (768, 519692), (1024, 389769), (1038, 384512), (1384, 288384), (1502, 265728), (1536, 259846), (2076, 192256), (2253, 177152), (2768, 144192), (3004, 132864), (3072, 129923), (4152, 96128), (4506, 88576), (5536, 72096), (6008, 66432), (8304, 48064), (9012, 44288), (11072, 36048), (12016, 33216), (16608, 24032), (18024, 22144)]