81213584

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{118043}}^1$

素因数の和:118094

約数の個数: 20

約数和(自身を含む): 161012016

約数和(自身を除く): 79798432

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 118043, 236086, 472172, 944344, 1888688, 5075849, 10151698, 20303396, 40606792, 81213584]

約数ペア:

[(1, 81213584), (2, 40606792), (4, 20303396), (8, 10151698), (16, 5075849), (43, 1888688), (86, 944344), (172, 472172), (344, 236086), (688, 118043)]