2051236240

素因数分解:

$2^4\times 5^1\times {\mathrm{25640453}}^1$

素因数の和:25640466

約数の個数: 20

約数和(自身を含む): 4769124444

約数和(自身を除く): 2717888204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25640453, 51280906, 102561812, 128202265, 205123624, 256404530, 410247248, 512809060, 1025618120, 2051236240]

約数ペア:

[(1, 2051236240), (2, 1025618120), (4, 512809060), (5, 410247248), (8, 256404530), (10, 205123624), (16, 128202265), (20, 102561812), (40, 51280906), (80, 25640453)]