28972400

素因数分解:

$2^4\times 5^2\times {\mathrm{72431}}^1$

素因数の和:72449

約数の個数: 30

約数和(自身を含む): 69607152

約数和(自身を除く): 40634752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 72431, 144862, 289724, 362155, 579448, 724310, 1158896, 1448620, 1810775, 2897240, 3621550, 5794480, 7243100, 14486200, 28972400]

約数ペア:

[(1, 28972400), (2, 14486200), (4, 7243100), (5, 5794480), (8, 3621550), (10, 2897240), (16, 1810775), (20, 1448620), (25, 1158896), (40, 724310), (50, 579448), (80, 362155), (100, 289724), (200, 144862), (400, 72431)]