128508740

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{46901}}^1$

素因数の和:47047

約数の個数: 24

約数和(自身を含む): 271843992

約数和(自身を除く): 143335252

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 46901, 93802, 187604, 234505, 469010, 938020, 6425437, 12850874, 25701748, 32127185, 64254370, 128508740]

約数ペア:

[(1, 128508740), (2, 64254370), (4, 32127185), (5, 25701748), (10, 12850874), (20, 6425437), (137, 938020), (274, 469010), (548, 234505), (685, 187604), (1370, 93802), (2740, 46901)]