18378752

素因数分解:

$2^{12}\times 7^1\times {\mathrm{641}}^1$

素因数の和:672

約数の個数: 52

約数和(自身を含む): 42068976

約数和(自身を除く): 23690224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 641, 896, 1024, 1282, 1792, 2048, 2564, 3584, 4096, 4487, 5128, 7168, 8974, 10256, 14336, 17948, 20512, 28672, 35896, 41024, 71792, 82048, 143584, 164096, 287168, 328192, 574336, 656384, 1148672, 1312768, 2297344, 2625536, 4594688, 9189376, 18378752]

約数ペア:

[(1, 18378752), (2, 9189376), (4, 4594688), (7, 2625536), (8, 2297344), (14, 1312768), (16, 1148672), (28, 656384), (32, 574336), (56, 328192), (64, 287168), (112, 164096), (128, 143584), (224, 82048), (256, 71792), (448, 41024), (512, 35896), (641, 28672), (896, 20512), (1024, 17948), (1282, 14336), (1792, 10256), (2048, 8974), (2564, 7168), (3584, 5128), (4096, 4487)]