28187236

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 64661184

約数和(自身を除く): 36473948

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 173, 253, 308, 322, 346, 506, 529, 644, 692, 1012, 1058, 1211, 1771, 1903, 2116, 2422, 3542, 3703, 3806, 3979, 4844, 5819, 7084, 7406, 7612, 7958, 11638, 13321, 14812, 15916, 23276, 26642, 27853, 40733, 43769, 53284, 55706, 81466, 87538, 91517, 111412, 162932, 175076, 183034, 306383, 366068, 612766, 640619, 1006687, 1225532, 1281238, 2013374, 2562476, 4026748, 7046809, 14093618, 28187236]

約数ペア:

[(1, 28187236), (2, 14093618), (4, 7046809), (7, 4026748), (11, 2562476), (14, 2013374), (22, 1281238), (23, 1225532), (28, 1006687), (44, 640619), (46, 612766), (77, 366068), (92, 306383), (154, 183034), (161, 175076), (173, 162932), (253, 111412), (308, 91517), (322, 87538), (346, 81466), (506, 55706), (529, 53284), (644, 43769), (692, 40733), (1012, 27853), (1058, 26642), (1211, 23276), (1771, 15916), (1903, 14812), (2116, 13321), (2422, 11638), (3542, 7958), (3703, 7612), (3806, 7406), (3979, 7084), (4844, 5819)]