78988588

素因数分解:

$2^2\times 7^2\times {\mathrm{403003}}^1$

素因数の和:403021

約数の個数: 18

約数和(自身を含む): 160798596

約数和(自身を除く): 81810008

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 403003, 806006, 1612012, 2821021, 5642042, 11284084, 19747147, 39494294, 78988588]

約数ペア:

[(1, 78988588), (2, 39494294), (4, 19747147), (7, 11284084), (14, 5642042), (28, 2821021), (49, 1612012), (98, 806006), (196, 403003)]