389733872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{21499}}^1$

素因数の和:21621

約数の個数: 40

約数和(自身を含む): 831792000

約数和(自身を除く): 442058128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1133, 1648, 2266, 4532, 9064, 18128, 21499, 42998, 85996, 171992, 236489, 343984, 472978, 945956, 1891912, 2214397, 3783824, 4428794, 8857588, 17715176, 24358367, 35430352, 48716734, 97433468, 194866936, 389733872]

約数ペア:

[(1, 389733872), (2, 194866936), (4, 97433468), (8, 48716734), (11, 35430352), (16, 24358367), (22, 17715176), (44, 8857588), (88, 4428794), (103, 3783824), (176, 2214397), (206, 1891912), (412, 945956), (824, 472978), (1133, 343984), (1648, 236489), (2266, 171992), (4532, 85996), (9064, 42998), (18128, 21499)]