51998260

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{2017}}^1$

素因数の和:3315

約数の個数: 24

約数和(自身を含む): 109335240

約数和(自身を除く): 57336980

約数列:

[1, 2, 4, 5, 10, 20, 1289, 2017, 2578, 4034, 5156, 6445, 8068, 10085, 12890, 20170, 25780, 40340, 2599913, 5199826, 10399652, 12999565, 25999130, 51998260]

約数ペア:

[(1, 51998260), (2, 25999130), (4, 12999565), (5, 10399652), (10, 5199826), (20, 2599913), (1289, 40340), (2017, 25780), (2578, 20170), (4034, 12890), (5156, 10085), (6445, 8068)]