258412

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{839}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 564480

約数和(自身を除く): 306068

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 839, 1678, 3356, 5873, 9229, 11746, 18458, 23492, 36916, 64603, 129206, 258412]

約数ペア:

[(1, 258412), (2, 129206), (4, 64603), (7, 36916), (11, 23492), (14, 18458), (22, 11746), (28, 9229), (44, 5873), (77, 3356), (154, 1678), (308, 839)]