20219248

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2473}}^1$

素因数の和:2561

約数の個数: 40

約数和(自身を含む): 45402848

約数和(自身を除く): 25183600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2473, 4088, 4946, 8176, 9892, 17311, 19784, 34622, 39568, 69244, 138488, 180529, 276976, 361058, 722116, 1263703, 1444232, 2527406, 2888464, 5054812, 10109624, 20219248]

約数ペア:

[(1, 20219248), (2, 10109624), (4, 5054812), (7, 2888464), (8, 2527406), (14, 1444232), (16, 1263703), (28, 722116), (56, 361058), (73, 276976), (112, 180529), (146, 138488), (292, 69244), (511, 39568), (584, 34622), (1022, 19784), (1168, 17311), (2044, 9892), (2473, 8176), (4088, 4946)]