20725248

素因数分解:

$2^9\times 3^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 80

約数和(自身を含む): 56174976

約数和(自身を除く): 35449728

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 103, 128, 131, 192, 206, 256, 262, 309, 384, 393, 412, 512, 524, 618, 768, 786, 824, 1048, 1236, 1536, 1572, 1648, 2096, 2472, 3144, 3296, 4192, 4944, 6288, 6592, 8384, 9888, 12576, 13184, 13493, 16768, 19776, 25152, 26368, 26986, 33536, 39552, 40479, 50304, 52736, 53972, 67072, 79104, 80958, 100608, 107944, 158208, 161916, 201216, 215888, 323832, 431776, 647664, 863552, 1295328, 1727104, 2590656, 3454208, 5181312, 6908416, 10362624, 20725248]

約数ペア:

[(1, 20725248), (2, 10362624), (3, 6908416), (4, 5181312), (6, 3454208), (8, 2590656), (12, 1727104), (16, 1295328), (24, 863552), (32, 647664), (48, 431776), (64, 323832), (96, 215888), (103, 201216), (128, 161916), (131, 158208), (192, 107944), (206, 100608), (256, 80958), (262, 79104), (309, 67072), (384, 53972), (393, 52736), (412, 50304), (512, 40479), (524, 39552), (618, 33536), (768, 26986), (786, 26368), (824, 25152), (1048, 19776), (1236, 16768), (1536, 13493), (1572, 13184), (1648, 12576), (2096, 9888), (2472, 8384), (3144, 6592), (3296, 6288), (4192, 4944)]