128969986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{78929}}^1$

素因数の和:78993

約数の個数: 16

約数和(自身を含む): 208375200

約数和(自身を除く): 79405214

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 78929, 157858, 1499651, 2999302, 3393947, 6787894, 64484993, 128969986]

約数ペア:

[(1, 128969986), (2, 64484993), (19, 6787894), (38, 3393947), (43, 2999302), (86, 1499651), (817, 157858), (1634, 78929)]