20124400

素因数分解:

$2^4\times 5^2\times {\mathrm{50311}}^1$

素因数の和:50329

約数の個数: 30

約数和(自身を含む): 48349832

約数和(自身を除く): 28225432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50311, 100622, 201244, 251555, 402488, 503110, 804976, 1006220, 1257775, 2012440, 2515550, 4024880, 5031100, 10062200, 20124400]

約数ペア:

[(1, 20124400), (2, 10062200), (4, 5031100), (5, 4024880), (8, 2515550), (10, 2012440), (16, 1257775), (20, 1006220), (25, 804976), (40, 503110), (50, 402488), (80, 251555), (100, 201244), (200, 100622), (400, 50311)]