81155900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{607}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 202653696

約数和(自身を除く): 121497796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 191, 350, 382, 607, 700, 764, 955, 1214, 1337, 1910, 2428, 2674, 3035, 3820, 4249, 4775, 5348, 6070, 6685, 8498, 9550, 12140, 13370, 15175, 16996, 19100, 21245, 26740, 30350, 33425, 42490, 60700, 66850, 84980, 106225, 115937, 133700, 212450, 231874, 424900, 463748, 579685, 811559, 1159370, 1623118, 2318740, 2898425, 3246236, 4057795, 5796850, 8115590, 11593700, 16231180, 20288975, 40577950, 81155900]

約数ペア:

[(1, 81155900), (2, 40577950), (4, 20288975), (5, 16231180), (7, 11593700), (10, 8115590), (14, 5796850), (20, 4057795), (25, 3246236), (28, 2898425), (35, 2318740), (50, 1623118), (70, 1159370), (100, 811559), (140, 579685), (175, 463748), (191, 424900), (350, 231874), (382, 212450), (607, 133700), (700, 115937), (764, 106225), (955, 84980), (1214, 66850), (1337, 60700), (1910, 42490), (2428, 33425), (2674, 30350), (3035, 26740), (3820, 21245), (4249, 19100), (4775, 16996), (5348, 15175), (6070, 13370), (6685, 12140), (8498, 9550)]