18490175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 25391232

約数和(自身を除く): 6901057

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 947, 1775, 3905, 4735, 10417, 19525, 23675, 52085, 67237, 260425, 336185, 739607, 1680925, 3698035, 18490175]

約数ペア:

[(1, 18490175), (5, 3698035), (11, 1680925), (25, 739607), (55, 336185), (71, 260425), (275, 67237), (355, 52085), (781, 23675), (947, 19525), (1775, 10417), (3905, 4735)]