80454800

素因数分解:

$2^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1021}}^1$

素因数の和:1236

約数の個数: 60

約数和(自身を含む): 194464116

約数和(自身を除く): 114009316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 197, 200, 394, 400, 788, 985, 1021, 1576, 1970, 2042, 3152, 3940, 4084, 4925, 5105, 7880, 8168, 9850, 10210, 15760, 16336, 19700, 20420, 25525, 39400, 40840, 51050, 78800, 81680, 102100, 201137, 204200, 402274, 408400, 804548, 1005685, 1609096, 2011370, 3218192, 4022740, 5028425, 8045480, 10056850, 16090960, 20113700, 40227400, 80454800]

約数ペア:

[(1, 80454800), (2, 40227400), (4, 20113700), (5, 16090960), (8, 10056850), (10, 8045480), (16, 5028425), (20, 4022740), (25, 3218192), (40, 2011370), (50, 1609096), (80, 1005685), (100, 804548), (197, 408400), (200, 402274), (394, 204200), (400, 201137), (788, 102100), (985, 81680), (1021, 78800), (1576, 51050), (1970, 40840), (2042, 39400), (3152, 25525), (3940, 20420), (4084, 19700), (4925, 16336), (5105, 15760), (7880, 10210), (8168, 9850)]