208982072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{12799}}^1$

素因数の和:12975

約数の個数: 32

約数和(自身を含む): 424704000

約数和(自身を除く): 215721928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1256, 2041, 4082, 8164, 12799, 16328, 25598, 51196, 102392, 166387, 332774, 665548, 1331096, 2009443, 4018886, 8037772, 16075544, 26122759, 52245518, 104491036, 208982072]

約数ペア:

[(1, 208982072), (2, 104491036), (4, 52245518), (8, 26122759), (13, 16075544), (26, 8037772), (52, 4018886), (104, 2009443), (157, 1331096), (314, 665548), (628, 332774), (1256, 166387), (2041, 102392), (4082, 51196), (8164, 25598), (12799, 16328)]