28087955

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 11725165

約数列:

[1, 5, 7, 35, 71, 89, 127, 355, 445, 497, 623, 635, 889, 2485, 3115, 4445, 6319, 9017, 11303, 31595, 44233, 45085, 56515, 63119, 79121, 221165, 315595, 395605, 802513, 4012565, 5617591, 28087955]

約数ペア:

[(1, 28087955), (5, 5617591), (7, 4012565), (35, 802513), (71, 395605), (89, 315595), (127, 221165), (355, 79121), (445, 63119), (497, 56515), (623, 45085), (635, 44233), (889, 31595), (2485, 11303), (3115, 9017), (4445, 6319)]