20505856

素因数分解:

$2^8\times 7^1\times {\mathrm{11443}}^1$

素因数の和:11466

約数の個数: 36

約数和(自身を含む): 46783072

約数和(自身を除く): 26277216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11443, 22886, 45772, 80101, 91544, 160202, 183088, 320404, 366176, 640808, 732352, 1281616, 1464704, 2563232, 2929408, 5126464, 10252928, 20505856]

約数ペア:

[(1, 20505856), (2, 10252928), (4, 5126464), (7, 2929408), (8, 2563232), (14, 1464704), (16, 1281616), (28, 732352), (32, 640808), (56, 366176), (64, 320404), (112, 183088), (128, 160202), (224, 91544), (256, 80101), (448, 45772), (896, 22886), (1792, 11443)]