261942784

素因数分解:

$2^9\times {\mathrm{61}}^1\times {\mathrm{8387}}^1$

素因数の和:8466

約数の個数: 40

約数和(自身を含む): 532017288

約数和(自身を除く): 270074504

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 512, 976, 1952, 3904, 7808, 8387, 15616, 16774, 31232, 33548, 67096, 134192, 268384, 511607, 536768, 1023214, 1073536, 2046428, 2147072, 4092856, 4294144, 8185712, 16371424, 32742848, 65485696, 130971392, 261942784]

約数ペア:

[(1, 261942784), (2, 130971392), (4, 65485696), (8, 32742848), (16, 16371424), (32, 8185712), (61, 4294144), (64, 4092856), (122, 2147072), (128, 2046428), (244, 1073536), (256, 1023214), (488, 536768), (512, 511607), (976, 268384), (1952, 134192), (3904, 67096), (7808, 33548), (8387, 31232), (15616, 16774)]