81252585

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{13997}}^1$

素因数の和:14054

約数の個数: 32

約数和(自身を含む): 147818880

約数和(自身を除く): 66566295

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 5805, 13997, 41991, 69985, 125973, 209955, 377919, 601871, 629865, 1805613, 1889595, 3009355, 5416839, 9028065, 16250517, 27084195, 81252585]

約数ペア:

[(1, 81252585), (3, 27084195), (5, 16250517), (9, 9028065), (15, 5416839), (27, 3009355), (43, 1889595), (45, 1805613), (129, 629865), (135, 601871), (215, 377919), (387, 209955), (645, 125973), (1161, 69985), (1935, 41991), (5805, 13997)]