54378020

素因数分解:

$2^2\times 5^1\times {\mathrm{2718901}}^1$

素因数の和:2718910

約数の個数: 12

約数和(自身を含む): 114193884

約数和(自身を除く): 59815864

約数列:

[1, 2, 4, 5, 10, 20, 2718901, 5437802, 10875604, 13594505, 27189010, 54378020]

約数ペア:

[(1, 54378020), (2, 27189010), (4, 13594505), (5, 10875604), (10, 5437802), (20, 2718901)]