80121778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{18301}}^1$

素因数の和:18513

約数の個数: 16

約数和(自身を含む): 131774400

約数和(自身を除く): 51652622

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 18301, 36602, 201311, 402622, 3641899, 7283798, 40060889, 80121778]

約数ペア:

[(1, 80121778), (2, 40060889), (11, 7283798), (22, 3641899), (199, 402622), (398, 201311), (2189, 36602), (4378, 18301)]