28227185

素因数分解:

$5^1\times 7^3\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 40128000

約数和(自身を除く): 11900815

約数列:

[1, 5, 7, 35, 49, 109, 151, 245, 343, 545, 755, 763, 1057, 1715, 3815, 5285, 5341, 7399, 16459, 26705, 36995, 37387, 51793, 82295, 115213, 186935, 258965, 576065, 806491, 4032455, 5645437, 28227185]

約数ペア:

[(1, 28227185), (5, 5645437), (7, 4032455), (35, 806491), (49, 576065), (109, 258965), (151, 186935), (245, 115213), (343, 82295), (545, 51793), (755, 37387), (763, 36995), (1057, 26705), (1715, 16459), (3815, 7399), (5285, 5341)]