20860880

素因数分解:

$2^4\times 5^1\times {\mathrm{260761}}^1$

素因数の和:260774

約数の個数: 20

約数和(自身を含む): 48501732

約数和(自身を除く): 27640852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260761, 521522, 1043044, 1303805, 2086088, 2607610, 4172176, 5215220, 10430440, 20860880]

約数ペア:

[(1, 20860880), (2, 10430440), (4, 5215220), (5, 4172176), (8, 2607610), (10, 2086088), (16, 1303805), (20, 1043044), (40, 521522), (80, 260761)]