51350800

素因数分解:

$2^4\times 5^2\times {\mathrm{128377}}^1$

素因数の和:128395

約数の個数: 30

約数和(自身を含む): 123371258

約数和(自身を除く): 72020458

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128377, 256754, 513508, 641885, 1027016, 1283770, 2054032, 2567540, 3209425, 5135080, 6418850, 10270160, 12837700, 25675400, 51350800]

約数ペア:

[(1, 51350800), (2, 25675400), (4, 12837700), (5, 10270160), (8, 6418850), (10, 5135080), (16, 3209425), (20, 2567540), (25, 2054032), (40, 1283770), (50, 1027016), (80, 641885), (100, 513508), (200, 256754), (400, 128377)]