105657680

素因数分解:

$2^4\times 5^1\times {\mathrm{1320721}}^1$

素因数の和:1320734

約数の個数: 20

約数和(自身を含む): 245654292

約数和(自身を除く): 139996612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1320721, 2641442, 5282884, 6603605, 10565768, 13207210, 21131536, 26414420, 52828840, 105657680]

約数ペア:

[(1, 105657680), (2, 52828840), (4, 26414420), (5, 21131536), (8, 13207210), (10, 10565768), (16, 6603605), (20, 5282884), (40, 2641442), (80, 1320721)]