89941520

素因数分解:

$2^4\times 5^1\times {\mathrm{1124269}}^1$

素因数の和:1124282

約数の個数: 20

約数和(自身を含む): 209114220

約数和(自身を除く): 119172700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1124269, 2248538, 4497076, 5621345, 8994152, 11242690, 17988304, 22485380, 44970760, 89941520]

約数ペア:

[(1, 89941520), (2, 44970760), (4, 22485380), (5, 17988304), (8, 11242690), (10, 8994152), (16, 5621345), (20, 4497076), (40, 2248538), (80, 1124269)]