20744672

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1131

約数の個数: 48

約数和(自身を含む): 44960832

約数和(自身を除く): 24216160

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 94, 104, 188, 208, 376, 416, 611, 752, 1061, 1222, 1504, 2122, 2444, 4244, 4888, 8488, 9776, 13793, 16976, 19552, 27586, 33952, 49867, 55172, 99734, 110344, 199468, 220688, 398936, 441376, 648271, 797872, 1296542, 1595744, 2593084, 5186168, 10372336, 20744672]

約数ペア:

[(1, 20744672), (2, 10372336), (4, 5186168), (8, 2593084), (13, 1595744), (16, 1296542), (26, 797872), (32, 648271), (47, 441376), (52, 398936), (94, 220688), (104, 199468), (188, 110344), (208, 99734), (376, 55172), (416, 49867), (611, 33952), (752, 27586), (1061, 19552), (1222, 16976), (1504, 13793), (2122, 9776), (2444, 8488), (4244, 4888)]