20798464

素因数分解:

$2^{10}\times {\mathrm{19}}^1\times {\mathrm{1069}}^1$

素因数の和:1108

約数の個数: 44

約数和(自身を含む): 43805800

約数和(自身を除く): 23007336

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1024, 1069, 1216, 2138, 2432, 4276, 4864, 8552, 9728, 17104, 19456, 20311, 34208, 40622, 68416, 81244, 136832, 162488, 273664, 324976, 547328, 649952, 1094656, 1299904, 2599808, 5199616, 10399232, 20798464]

約数ペア:

[(1, 20798464), (2, 10399232), (4, 5199616), (8, 2599808), (16, 1299904), (19, 1094656), (32, 649952), (38, 547328), (64, 324976), (76, 273664), (128, 162488), (152, 136832), (256, 81244), (304, 68416), (512, 40622), (608, 34208), (1024, 20311), (1069, 19456), (1216, 17104), (2138, 9728), (2432, 8552), (4276, 4864)]