20521400

素因数分解:

$2^3\times 5^2\times {\mathrm{102607}}^1$

素因数の和:102623

約数の個数: 24

約数和(自身を含む): 47712720

約数和(自身を除く): 27191320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 102607, 205214, 410428, 513035, 820856, 1026070, 2052140, 2565175, 4104280, 5130350, 10260700, 20521400]

約数ペア:

[(1, 20521400), (2, 10260700), (4, 5130350), (5, 4104280), (8, 2565175), (10, 2052140), (20, 1026070), (25, 820856), (40, 513035), (50, 410428), (100, 205214), (200, 102607)]