20156120

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13619}}^1$

素因数の和:13667

約数の個数: 32

約数和(自身を含む): 46580400

約数和(自身を除く): 26424280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13619, 27238, 54476, 68095, 108952, 136190, 272380, 503903, 544760, 1007806, 2015612, 2519515, 4031224, 5039030, 10078060, 20156120]

約数ペア:

[(1, 20156120), (2, 10078060), (4, 5039030), (5, 4031224), (8, 2519515), (10, 2015612), (20, 1007806), (37, 544760), (40, 503903), (74, 272380), (148, 136190), (185, 108952), (296, 68095), (370, 54476), (740, 27238), (1480, 13619)]