656818609072

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{313367657}}^1$

素因数の和:313367796

約数の個数: 20

約数和(自身を含む): 1282300456536

約数和(自身を除く): 625481847464

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 313367657, 626735314, 1253470628, 2506941256, 5013882512, 41051163067, 82102326134, 164204652268, 328409304536, 656818609072]

約数ペア:

[(1, 656818609072), (2, 328409304536), (4, 164204652268), (8, 82102326134), (16, 41051163067), (131, 5013882512), (262, 2506941256), (524, 1253470628), (1048, 626735314), (2096, 313367657)]