28261772

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1031}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 62415360

約数和(自身を除く): 34153588

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 89, 154, 178, 308, 356, 623, 979, 1031, 1246, 1958, 2062, 2492, 3916, 4124, 6853, 7217, 11341, 13706, 14434, 22682, 27412, 28868, 45364, 79387, 91759, 158774, 183518, 317548, 367036, 642313, 1009349, 1284626, 2018698, 2569252, 4037396, 7065443, 14130886, 28261772]

約数ペア:

[(1, 28261772), (2, 14130886), (4, 7065443), (7, 4037396), (11, 2569252), (14, 2018698), (22, 1284626), (28, 1009349), (44, 642313), (77, 367036), (89, 317548), (154, 183518), (178, 158774), (308, 91759), (356, 79387), (623, 45364), (979, 28868), (1031, 27412), (1246, 22682), (1958, 14434), (2062, 13706), (2492, 11341), (3916, 7217), (4124, 6853)]