81997232

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{165317}}^1$

素因数の和:165356

約数の個数: 20

約数和(自身を含む): 163995456

約数和(自身を除く): 81998224

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 165317, 330634, 661268, 1322536, 2645072, 5124827, 10249654, 20499308, 40998616, 81997232]

約数ペア:

[(1, 81997232), (2, 40998616), (4, 20499308), (8, 10249654), (16, 5124827), (31, 2645072), (62, 1322536), (124, 661268), (248, 330634), (496, 165317)]