81054416

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{38671}}^1$

素因数の和:38810

約数の個数: 20

約数和(自身を含む): 158245824

約数和(自身を除く): 77191408

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 38671, 77342, 154684, 309368, 618736, 5065901, 10131802, 20263604, 40527208, 81054416]

約数ペア:

[(1, 81054416), (2, 40527208), (4, 20263604), (8, 10131802), (16, 5065901), (131, 618736), (262, 309368), (524, 154684), (1048, 77342), (2096, 38671)]