160021778

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{90001}}^1$

素因数の和:90137

約数の個数: 16

約数和(自身を含む): 276486144

約数和(自身を除く): 116464366

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 90001, 180002, 630007, 1260014, 11430127, 22860254, 80010889, 160021778]

約数ペア:

[(1, 160021778), (2, 80010889), (7, 22860254), (14, 11430127), (127, 1260014), (254, 630007), (889, 180002), (1778, 90001)]