81755820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454199}}^1$

素因数の和:454214

約数の個数: 36

約数和(自身を含む): 247993200

約数和(自身を除く): 166237380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454199, 908398, 1362597, 1816796, 2270995, 2725194, 4087791, 4541990, 5450388, 6812985, 8175582, 9083980, 13625970, 16351164, 20438955, 27251940, 40877910, 81755820]

約数ペア:

[(1, 81755820), (2, 40877910), (3, 27251940), (4, 20438955), (5, 16351164), (6, 13625970), (9, 9083980), (10, 8175582), (12, 6812985), (15, 5450388), (18, 4541990), (20, 4087791), (30, 2725194), (36, 2270995), (45, 1816796), (60, 1362597), (90, 908398), (180, 454199)]