81150140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{213553}}^1$

素因数の和:213581

約数の個数: 24

約数和(自身を含む): 179385360

約数和(自身を除く): 98235220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 213553, 427106, 854212, 1067765, 2135530, 4057507, 4271060, 8115014, 16230028, 20287535, 40575070, 81150140]

約数ペア:

[(1, 81150140), (2, 40575070), (4, 20287535), (5, 16230028), (10, 8115014), (19, 4271060), (20, 4057507), (38, 2135530), (76, 1067765), (95, 854212), (190, 427106), (380, 213553)]