20439104

素因数分解:

$2^6\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1123

約数の個数: 56

約数和(自身を含む): 47475648

約数和(自身を除く): 27036544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 172, 224, 301, 344, 448, 602, 688, 1061, 1204, 1376, 2122, 2408, 2752, 4244, 4816, 7427, 8488, 9632, 14854, 16976, 19264, 29708, 33952, 45623, 59416, 67904, 91246, 118832, 182492, 237664, 319361, 364984, 475328, 638722, 729968, 1277444, 1459936, 2554888, 2919872, 5109776, 10219552, 20439104]

約数ペア:

[(1, 20439104), (2, 10219552), (4, 5109776), (7, 2919872), (8, 2554888), (14, 1459936), (16, 1277444), (28, 729968), (32, 638722), (43, 475328), (56, 364984), (64, 319361), (86, 237664), (112, 182492), (172, 118832), (224, 91246), (301, 67904), (344, 59416), (448, 45623), (602, 33952), (688, 29708), (1061, 19264), (1204, 16976), (1376, 14854), (2122, 9632), (2408, 8488), (2752, 7427), (4244, 4816)]