20443232

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21469408

約数列:

[1, 2, 4, 8, 16, 32, 43, 83, 86, 166, 172, 179, 332, 344, 358, 664, 688, 716, 1328, 1376, 1432, 2656, 2864, 3569, 5728, 7138, 7697, 14276, 14857, 15394, 28552, 29714, 30788, 57104, 59428, 61576, 114208, 118856, 123152, 237712, 246304, 475424, 638851, 1277702, 2555404, 5110808, 10221616, 20443232]

約数ペア:

[(1, 20443232), (2, 10221616), (4, 5110808), (8, 2555404), (16, 1277702), (32, 638851), (43, 475424), (83, 246304), (86, 237712), (166, 123152), (172, 118856), (179, 114208), (332, 61576), (344, 59428), (358, 57104), (664, 30788), (688, 29714), (716, 28552), (1328, 15394), (1376, 14857), (1432, 14276), (2656, 7697), (2864, 7138), (3569, 5728)]