128806736

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{259691}}^1$

素因数の和:259730

約数の個数: 20

約数和(自身を含む): 257614464

約数和(自身を除く): 128807728

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 259691, 519382, 1038764, 2077528, 4155056, 8050421, 16100842, 32201684, 64403368, 128806736]

約数ペア:

[(1, 128806736), (2, 64403368), (4, 32201684), (8, 16100842), (16, 8050421), (31, 4155056), (62, 2077528), (124, 1038764), (248, 519382), (496, 259691)]