81225968

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{118061}}^1$

素因数の和:118112

約数の個数: 20

約数和(自身を含む): 161036568

約数和(自身を除く): 79810600

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 118061, 236122, 472244, 944488, 1888976, 5076623, 10153246, 20306492, 40612984, 81225968]

約数ペア:

[(1, 81225968), (2, 40612984), (4, 20306492), (8, 10153246), (16, 5076623), (43, 1888976), (86, 944488), (172, 472244), (344, 236122), (688, 118061)]