80678740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130127}}^1$

素因数の和:130167

約数の個数: 24

約数和(自身を含む): 174892032

約数和(自身を除く): 94213292

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 130127, 260254, 520508, 650635, 1301270, 2602540, 4033937, 8067874, 16135748, 20169685, 40339370, 80678740]

約数ペア:

[(1, 80678740), (2, 40339370), (4, 20169685), (5, 16135748), (10, 8067874), (20, 4033937), (31, 2602540), (62, 1301270), (124, 650635), (155, 520508), (310, 260254), (620, 130127)]