128387588

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{42853}}^1$

素因数の和:42971

約数の個数: 24

約数和(自身を含む): 259180992

約数和(自身を除く): 130793404

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 749, 1498, 2996, 42853, 85706, 171412, 299971, 599942, 1199884, 4585271, 9170542, 18341084, 32096897, 64193794, 128387588]

約数ペア:

[(1, 128387588), (2, 64193794), (4, 32096897), (7, 18341084), (14, 9170542), (28, 4585271), (107, 1199884), (214, 599942), (428, 299971), (749, 171412), (1498, 85706), (2996, 42853)]