164755040

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5227}}^1$

素因数の和:5439

約数の個数: 48

約数和(自身を含む): 391284432

約数和(自身を除く): 226529392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 5227, 6304, 7880, 10454, 15760, 20908, 26135, 31520, 41816, 52270, 83632, 104540, 167264, 209080, 418160, 836320, 1029719, 2059438, 4118876, 5148595, 8237752, 10297190, 16475504, 20594380, 32951008, 41188760, 82377520, 164755040]

約数ペア:

[(1, 164755040), (2, 82377520), (4, 41188760), (5, 32951008), (8, 20594380), (10, 16475504), (16, 10297190), (20, 8237752), (32, 5148595), (40, 4118876), (80, 2059438), (160, 1029719), (197, 836320), (394, 418160), (788, 209080), (985, 167264), (1576, 104540), (1970, 83632), (3152, 52270), (3940, 41816), (5227, 31520), (6304, 26135), (7880, 20908), (10454, 15760)]