51143120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:628

約数の個数: 80

約数和(自身を含む): 136800768

約数和(自身を除く): 85657648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 271, 280, 337, 542, 560, 674, 1084, 1348, 1355, 1685, 1897, 2168, 2359, 2696, 2710, 3370, 3794, 4336, 4718, 5392, 5420, 6740, 7588, 9436, 9485, 10840, 11795, 13480, 15176, 18872, 18970, 21680, 23590, 26960, 30352, 37744, 37940, 47180, 75880, 91327, 94360, 151760, 182654, 188720, 365308, 456635, 639289, 730616, 913270, 1278578, 1461232, 1826540, 2557156, 3196445, 3653080, 5114312, 6392890, 7306160, 10228624, 12785780, 25571560, 51143120]

約数ペア:

[(1, 51143120), (2, 25571560), (4, 12785780), (5, 10228624), (7, 7306160), (8, 6392890), (10, 5114312), (14, 3653080), (16, 3196445), (20, 2557156), (28, 1826540), (35, 1461232), (40, 1278578), (56, 913270), (70, 730616), (80, 639289), (112, 456635), (140, 365308), (271, 188720), (280, 182654), (337, 151760), (542, 94360), (560, 91327), (674, 75880), (1084, 47180), (1348, 37940), (1355, 37744), (1685, 30352), (1897, 26960), (2168, 23590), (2359, 21680), (2696, 18970), (2710, 18872), (3370, 15176), (3794, 13480), (4336, 11795), (4718, 10840), (5392, 9485), (5420, 9436), (6740, 7588)]