30972400

素因数分解:

$2^4\times 5^2\times {\mathrm{77431}}^1$

素因数の和:77449

約数の個数: 30

約数和(自身を含む): 74412152

約数和(自身を除く): 43439752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 77431, 154862, 309724, 387155, 619448, 774310, 1238896, 1548620, 1935775, 3097240, 3871550, 6194480, 7743100, 15486200, 30972400]

約数ペア:

[(1, 30972400), (2, 15486200), (4, 7743100), (5, 6194480), (8, 3871550), (10, 3097240), (16, 1935775), (20, 1548620), (25, 1238896), (40, 774310), (50, 619448), (80, 387155), (100, 309724), (200, 154862), (400, 77431)]