20809664

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:313

約数の個数: 56

約数和(自身を含む): 43939968

約数和(自身を除く): 23130304

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 67, 92, 134, 184, 211, 268, 368, 422, 536, 736, 844, 1072, 1472, 1541, 1688, 2144, 3082, 3376, 4288, 4853, 6164, 6752, 9706, 12328, 13504, 14137, 19412, 24656, 28274, 38824, 49312, 56548, 77648, 98624, 113096, 155296, 226192, 310592, 325151, 452384, 650302, 904768, 1300604, 2601208, 5202416, 10404832, 20809664]

約数ペア:

[(1, 20809664), (2, 10404832), (4, 5202416), (8, 2601208), (16, 1300604), (23, 904768), (32, 650302), (46, 452384), (64, 325151), (67, 310592), (92, 226192), (134, 155296), (184, 113096), (211, 98624), (268, 77648), (368, 56548), (422, 49312), (536, 38824), (736, 28274), (844, 24656), (1072, 19412), (1472, 14137), (1541, 13504), (1688, 12328), (2144, 9706), (3082, 6752), (3376, 6164), (4288, 4853)]