51324400

素因数分解:

$2^4\times 5^2\times {\mathrm{128311}}^1$

素因数の和:128329

約数の個数: 30

約数和(自身を含む): 123307832

約数和(自身を除く): 71983432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128311, 256622, 513244, 641555, 1026488, 1283110, 2052976, 2566220, 3207775, 5132440, 6415550, 10264880, 12831100, 25662200, 51324400]

約数ペア:

[(1, 51324400), (2, 25662200), (4, 12831100), (5, 10264880), (8, 6415550), (10, 5132440), (16, 3207775), (20, 2566220), (25, 2052976), (40, 1283110), (50, 1026488), (80, 641555), (100, 513244), (200, 256622), (400, 128311)]