257505908

素因数分解:

$2^2\times {\mathrm{11}}^4\times {\mathrm{4397}}^1$

素因数の和:4445

約数の個数: 30

約数和(自身を含む): 495808530

約数和(自身を除く): 238302622

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1331, 2662, 4397, 5324, 8794, 14641, 17588, 29282, 48367, 58564, 96734, 193468, 532037, 1064074, 2128148, 5852407, 11704814, 23409628, 64376477, 128752954, 257505908]

約数ペア:

[(1, 257505908), (2, 128752954), (4, 64376477), (11, 23409628), (22, 11704814), (44, 5852407), (121, 2128148), (242, 1064074), (484, 532037), (1331, 193468), (2662, 96734), (4397, 58564), (5324, 48367), (8794, 29282), (14641, 17588)]