138912865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{17959}}^1$

素因数の和:18001

約数の個数: 32

約数和(自身を含む): 217244160

約数和(自身を除く): 78331295

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 221, 455, 595, 1105, 1547, 7735, 17959, 89795, 125713, 233467, 305303, 628565, 1167335, 1526515, 1634269, 2137121, 3968939, 8171345, 10685605, 19844695, 27782573, 138912865]

約数ペア:

[(1, 138912865), (5, 27782573), (7, 19844695), (13, 10685605), (17, 8171345), (35, 3968939), (65, 2137121), (85, 1634269), (91, 1526515), (119, 1167335), (221, 628565), (455, 305303), (595, 233467), (1105, 125713), (1547, 89795), (7735, 17959)]