20864032

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5479}}^1$

素因数の和:5513

約数の個数: 48

約数和(自身を含む): 49714560

約数和(自身を除く): 28850528

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 5479, 10958, 21916, 38353, 43832, 76706, 87664, 93143, 153412, 175328, 186286, 306824, 372572, 613648, 652001, 745144, 1227296, 1304002, 1490288, 2608004, 2980576, 5216008, 10432016, 20864032]

約数ペア:

[(1, 20864032), (2, 10432016), (4, 5216008), (7, 2980576), (8, 2608004), (14, 1490288), (16, 1304002), (17, 1227296), (28, 745144), (32, 652001), (34, 613648), (56, 372572), (68, 306824), (112, 186286), (119, 175328), (136, 153412), (224, 93143), (238, 87664), (272, 76706), (476, 43832), (544, 38353), (952, 21916), (1904, 10958), (3808, 5479)]