28968400

素因数分解:

$2^4\times 5^2\times {\mathrm{72421}}^1$

素因数の和:72439

約数の個数: 30

約数和(自身を含む): 69597542

約数和(自身を除く): 40629142

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 72421, 144842, 289684, 362105, 579368, 724210, 1158736, 1448420, 1810525, 2896840, 3621050, 5793680, 7242100, 14484200, 28968400]

約数ペア:

[(1, 28968400), (2, 14484200), (4, 7242100), (5, 5793680), (8, 3621050), (10, 2896840), (16, 1810525), (20, 1448420), (25, 1158736), (40, 724210), (50, 579368), (80, 362105), (100, 289684), (200, 144842), (400, 72421)]