257235841

素因数分解:

${\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 282106944

約数和(自身を除く): 24871103

約数列:

[1, 23, 47, 61, 83, 1081, 1403, 1909, 2209, 2867, 3901, 5063, 50807, 65941, 89723, 116449, 134749, 183347, 237961, 3099227, 4216981, 5473103, 11184167, 257235841]

約数ペア:

[(1, 257235841), (23, 11184167), (47, 5473103), (61, 4216981), (83, 3099227), (1081, 237961), (1403, 183347), (1909, 134749), (2209, 116449), (2867, 89723), (3901, 65941), (5063, 50807)]