80402440

素因数分解:

$2^3\times 5^1\times {\mathrm{2010061}}^1$

素因数の和:2010072

約数の個数: 16

約数和(自身を含む): 180905580

約数和(自身を除く): 100503140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2010061, 4020122, 8040244, 10050305, 16080488, 20100610, 40201220, 80402440]

約数ペア:

[(1, 80402440), (2, 40201220), (4, 20100610), (5, 16080488), (8, 10050305), (10, 8040244), (20, 4020122), (40, 2010061)]