28812400

素因数分解:

$2^4\times 5^2\times {\mathrm{72031}}^1$

素因数の和:72049

約数の個数: 30

約数和(自身を含む): 69222752

約数和(自身を除く): 40410352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 72031, 144062, 288124, 360155, 576248, 720310, 1152496, 1440620, 1800775, 2881240, 3601550, 5762480, 7203100, 14406200, 28812400]

約数ペア:

[(1, 28812400), (2, 14406200), (4, 7203100), (5, 5762480), (8, 3601550), (10, 2881240), (16, 1800775), (20, 1440620), (25, 1152496), (40, 720310), (50, 576248), (80, 360155), (100, 288124), (200, 144062), (400, 72031)]