28849535

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 41090112

約数和(自身を除く): 12240577

約数列:

[1, 5, 11, 13, 55, 65, 143, 157, 257, 715, 785, 1285, 1727, 2041, 2827, 3341, 8635, 10205, 14135, 16705, 22451, 36751, 40349, 112255, 183755, 201745, 443839, 524537, 2219195, 2622685, 5769907, 28849535]

約数ペア:

[(1, 28849535), (5, 5769907), (11, 2622685), (13, 2219195), (55, 524537), (65, 443839), (143, 201745), (157, 183755), (257, 112255), (715, 40349), (785, 36751), (1285, 22451), (1727, 16705), (2041, 14135), (2827, 10205), (3341, 8635)]