81290048

素因数分解:

$2^6\times 7^1\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:871

約数の個数: 56

約数和(自身を含む): 185220864

約数和(自身を除く): 103930816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 421, 431, 448, 842, 862, 1684, 1724, 2947, 3017, 3368, 3448, 5894, 6034, 6736, 6896, 11788, 12068, 13472, 13792, 23576, 24136, 26944, 27584, 47152, 48272, 94304, 96544, 181451, 188608, 193088, 362902, 725804, 1270157, 1451608, 2540314, 2903216, 5080628, 5806432, 10161256, 11612864, 20322512, 40645024, 81290048]

約数ペア:

[(1, 81290048), (2, 40645024), (4, 20322512), (7, 11612864), (8, 10161256), (14, 5806432), (16, 5080628), (28, 2903216), (32, 2540314), (56, 1451608), (64, 1270157), (112, 725804), (224, 362902), (421, 193088), (431, 188608), (448, 181451), (842, 96544), (862, 94304), (1684, 48272), (1724, 47152), (2947, 27584), (3017, 26944), (3368, 24136), (3448, 23576), (5894, 13792), (6034, 13472), (6736, 12068), (6896, 11788)]