647664

素因数分解:

$2^4\times 3^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 40

約数和(自身を含む): 1702272

約数和(自身を除く): 1054608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 103, 131, 206, 262, 309, 393, 412, 524, 618, 786, 824, 1048, 1236, 1572, 1648, 2096, 2472, 3144, 4944, 6288, 13493, 26986, 40479, 53972, 80958, 107944, 161916, 215888, 323832, 647664]

約数ペア:

[(1, 647664), (2, 323832), (3, 215888), (4, 161916), (6, 107944), (8, 80958), (12, 53972), (16, 40479), (24, 26986), (48, 13493), (103, 6288), (131, 4944), (206, 3144), (262, 2472), (309, 2096), (393, 1648), (412, 1572), (524, 1236), (618, 1048), (786, 824)]