1388336815

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 1723930560

約数和(自身を除く): 335593745

約数列:

[1, 5, 67, 109, 193, 197, 335, 545, 965, 985, 7303, 12931, 13199, 21037, 21473, 36515, 38021, 64655, 65995, 105185, 107365, 190105, 1409479, 1438691, 2547407, 4144289, 7047395, 7193455, 12737035, 20721445, 277667363, 1388336815]

約数ペア:

[(1, 1388336815), (5, 277667363), (67, 20721445), (109, 12737035), (193, 7193455), (197, 7047395), (335, 4144289), (545, 2547407), (965, 1438691), (985, 1409479), (7303, 190105), (12931, 107365), (13199, 105185), (21037, 65995), (21473, 64655), (36515, 38021)]