28309255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 9994745

約数列:

[1, 5, 13, 37, 65, 79, 149, 185, 395, 481, 745, 1027, 1937, 2405, 2923, 5135, 5513, 9685, 11771, 14615, 27565, 37999, 58855, 71669, 153023, 189995, 358345, 435527, 765115, 2177635, 5661851, 28309255]

約数ペア:

[(1, 28309255), (5, 5661851), (13, 2177635), (37, 765115), (65, 435527), (79, 358345), (149, 189995), (185, 153023), (395, 71669), (481, 58855), (745, 37999), (1027, 27565), (1937, 14615), (2405, 11771), (2923, 9685), (5135, 5513)]