20539600

素因数分解:

$2^4\times 5^2\times {\mathrm{51349}}^1$

素因数の和:51367

約数の個数: 30

約数和(自身を含む): 49347350

約数和(自身を除く): 28807750

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51349, 102698, 205396, 256745, 410792, 513490, 821584, 1026980, 1283725, 2053960, 2567450, 4107920, 5134900, 10269800, 20539600]

約数ペア:

[(1, 20539600), (2, 10269800), (4, 5134900), (5, 4107920), (8, 2567450), (10, 2053960), (16, 1283725), (20, 1026980), (25, 821584), (40, 513490), (50, 410792), (80, 256745), (100, 205396), (200, 102698), (400, 51349)]