81416168

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{328291}}^1$

素因数の和:328328

約数の個数: 16

約数和(自身を含む): 157580160

約数和(自身を除く): 76163992

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 328291, 656582, 1313164, 2626328, 10177021, 20354042, 40708084, 81416168]

約数ペア:

[(1, 81416168), (2, 40708084), (4, 20354042), (8, 10177021), (31, 2626328), (62, 1313164), (124, 656582), (248, 328291)]