81978176

素因数分解:

$2^6\times 7^2\times {\mathrm{26141}}^1$

素因数の和:26167

約数の個数: 42

約数和(自身を含む): 189241938

約数和(自身を除く): 107263762

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 26141, 52282, 104564, 182987, 209128, 365974, 418256, 731948, 836512, 1280909, 1463896, 1673024, 2561818, 2927792, 5123636, 5855584, 10247272, 11711168, 20494544, 40989088, 81978176]

約数ペア:

[(1, 81978176), (2, 40989088), (4, 20494544), (7, 11711168), (8, 10247272), (14, 5855584), (16, 5123636), (28, 2927792), (32, 2561818), (49, 1673024), (56, 1463896), (64, 1280909), (98, 836512), (112, 731948), (196, 418256), (224, 365974), (392, 209128), (448, 182987), (784, 104564), (1568, 52282), (3136, 26141)]