20836240

素因数分解:

$2^4\times 5^1\times {\mathrm{260453}}^1$

素因数の和:260466

約数の個数: 20

約数和(自身を含む): 48444444

約数和(自身を除く): 27608204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260453, 520906, 1041812, 1302265, 2083624, 2604530, 4167248, 5209060, 10418120, 20836240]

約数ペア:

[(1, 20836240), (2, 10418120), (4, 5209060), (5, 4167248), (8, 2604530), (10, 2083624), (16, 1302265), (20, 1041812), (40, 520906), (80, 260453)]