28389508

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 59328640

約数和(自身を除く): 30939132

約数列:

[1, 2, 4, 7, 14, 28, 37, 67, 74, 134, 148, 259, 268, 409, 469, 518, 818, 938, 1036, 1636, 1876, 2479, 2863, 4958, 5726, 9916, 11452, 15133, 17353, 27403, 30266, 34706, 54806, 60532, 69412, 105931, 109612, 191821, 211862, 383642, 423724, 767284, 1013911, 2027822, 4055644, 7097377, 14194754, 28389508]

約数ペア:

[(1, 28389508), (2, 14194754), (4, 7097377), (7, 4055644), (14, 2027822), (28, 1013911), (37, 767284), (67, 423724), (74, 383642), (134, 211862), (148, 191821), (259, 109612), (268, 105931), (409, 69412), (469, 60532), (518, 54806), (818, 34706), (938, 30266), (1036, 27403), (1636, 17353), (1876, 15133), (2479, 11452), (2863, 9916), (4958, 5726)]