15960025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{47}}^2$

素因数の和:138

約数の個数: 27

約数和(自身を含む): 21479869

約数和(自身を除く): 5519844

約数列:

[1, 5, 17, 25, 47, 85, 235, 289, 425, 799, 1175, 1445, 2209, 3995, 7225, 11045, 13583, 19975, 37553, 55225, 67915, 187765, 339575, 638401, 938825, 3192005, 15960025]

約数ペア:

[(1, 15960025), (5, 3192005), (17, 938825), (25, 638401), (47, 339575), (85, 187765), (235, 67915), (289, 55225), (425, 37553), (799, 19975), (1175, 13583), (1445, 11045), (2209, 7225)]