28372880

素因数分解:

$2^4\times 5^1\times {\mathrm{354661}}^1$

素因数の和:354674

約数の個数: 20

約数和(自身を含む): 65967132

約数和(自身を除く): 37594252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354661, 709322, 1418644, 1773305, 2837288, 3546610, 5674576, 7093220, 14186440, 28372880]

約数ペア:

[(1, 28372880), (2, 14186440), (4, 7093220), (5, 5674576), (8, 3546610), (10, 2837288), (16, 1773305), (20, 1418644), (40, 709322), (80, 354661)]