138105940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{986471}}^1$

素因数の和:986487

約数の個数: 24

約数和(自身を含む): 331454592

約数和(自身を除く): 193348652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 986471, 1972942, 3945884, 4932355, 6905297, 9864710, 13810594, 19729420, 27621188, 34526485, 69052970, 138105940]

約数ペア:

[(1, 138105940), (2, 69052970), (4, 34526485), (5, 27621188), (7, 19729420), (10, 13810594), (14, 9864710), (20, 6905297), (28, 4932355), (35, 3945884), (70, 1972942), (140, 986471)]