78894560

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2503}}^1$

素因数の和:2715

約数の個数: 48

約数和(自身を含む): 187409376

約数和(自身を除く): 108514816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 2503, 3152, 3940, 5006, 6304, 7880, 10012, 12515, 15760, 20024, 25030, 31520, 40048, 50060, 80096, 100120, 200240, 400480, 493091, 986182, 1972364, 2465455, 3944728, 4930910, 7889456, 9861820, 15778912, 19723640, 39447280, 78894560]

約数ペア:

[(1, 78894560), (2, 39447280), (4, 19723640), (5, 15778912), (8, 9861820), (10, 7889456), (16, 4930910), (20, 3944728), (32, 2465455), (40, 1972364), (80, 986182), (160, 493091), (197, 400480), (394, 200240), (788, 100120), (985, 80096), (1576, 50060), (1970, 40048), (2503, 31520), (3152, 25030), (3940, 20024), (5006, 15760), (6304, 12515), (7880, 10012)]