12782725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1583}}^1$

素因数の和:1629

約数の個数: 24

約数和(自身を含む): 17677440

約数和(自身を除く): 4894715

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1583, 1615, 7915, 8075, 26911, 30077, 39575, 134555, 150385, 511309, 672775, 751925, 2556545, 12782725]

約数ペア:

[(1, 12782725), (5, 2556545), (17, 751925), (19, 672775), (25, 511309), (85, 150385), (95, 134555), (323, 39575), (425, 30077), (475, 26911), (1583, 8075), (1615, 7915)]