28972880

素因数分解:

$2^4\times 5^1\times {\mathrm{362161}}^1$

素因数の和:362174

約数の個数: 20

約数和(自身を含む): 67362132

約数和(自身を除く): 38389252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 362161, 724322, 1448644, 1810805, 2897288, 3621610, 5794576, 7243220, 14486440, 28972880]

約数ペア:

[(1, 28972880), (2, 14486440), (4, 7243220), (5, 5794576), (8, 3621610), (10, 2897288), (16, 1810805), (20, 1448644), (40, 724322), (80, 362161)]