20796784

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1823}}^1$

素因数の和:1885

約数の個数: 40

約数和(自身を含む): 43425792

約数和(自身を除く): 22629008

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 92, 124, 184, 248, 368, 496, 713, 1426, 1823, 2852, 3646, 5704, 7292, 11408, 14584, 29168, 41929, 56513, 83858, 113026, 167716, 226052, 335432, 452104, 670864, 904208, 1299799, 2599598, 5199196, 10398392, 20796784]

約数ペア:

[(1, 20796784), (2, 10398392), (4, 5199196), (8, 2599598), (16, 1299799), (23, 904208), (31, 670864), (46, 452104), (62, 335432), (92, 226052), (124, 167716), (184, 113026), (248, 83858), (368, 56513), (496, 41929), (713, 29168), (1426, 14584), (1823, 11408), (2852, 7292), (3646, 5704)]