681242236

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{21377}}^1$

素因数の和:21669

約数の個数: 24

約数和(自身を含む): 1235477376

約数和(自身を除く): 554235140

約数列:

[1, 2, 4, 31, 62, 124, 257, 514, 1028, 7967, 15934, 21377, 31868, 42754, 85508, 662687, 1325374, 2650748, 5493889, 10987778, 21975556, 170310559, 340621118, 681242236]

約数ペア:

[(1, 681242236), (2, 340621118), (4, 170310559), (31, 21975556), (62, 10987778), (124, 5493889), (257, 2650748), (514, 1325374), (1028, 662687), (7967, 85508), (15934, 42754), (21377, 31868)]