257907188

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:802

約数の個数: 96

約数和(自身を含む): 599961600

約数和(自身を除く): 342054412

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 77, 92, 98, 154, 161, 196, 253, 308, 322, 343, 506, 539, 644, 686, 743, 1012, 1078, 1127, 1372, 1486, 1771, 2156, 2254, 2972, 3542, 3773, 4508, 5201, 7084, 7546, 7889, 8173, 10402, 12397, 15092, 15778, 16346, 17089, 20804, 24794, 31556, 32692, 34178, 36407, 49588, 57211, 68356, 72814, 86779, 114422, 119623, 145628, 173558, 187979, 228844, 239246, 254849, 347116, 375958, 400477, 478492, 509698, 751916, 800954, 837361, 1019396, 1315853, 1601908, 1674722, 2631706, 2803339, 3349444, 5263412, 5606678, 5861527, 9210971, 11213356, 11723054, 18421942, 23446108, 36843884, 64476797, 128953594, 257907188]

約数ペア:

[(1, 257907188), (2, 128953594), (4, 64476797), (7, 36843884), (11, 23446108), (14, 18421942), (22, 11723054), (23, 11213356), (28, 9210971), (44, 5861527), (46, 5606678), (49, 5263412), (77, 3349444), (92, 2803339), (98, 2631706), (154, 1674722), (161, 1601908), (196, 1315853), (253, 1019396), (308, 837361), (322, 800954), (343, 751916), (506, 509698), (539, 478492), (644, 400477), (686, 375958), (743, 347116), (1012, 254849), (1078, 239246), (1127, 228844), (1372, 187979), (1486, 173558), (1771, 145628), (2156, 119623), (2254, 114422), (2972, 86779), (3542, 72814), (3773, 68356), (4508, 57211), (5201, 49588), (7084, 36407), (7546, 34178), (7889, 32692), (8173, 31556), (10402, 24794), (12397, 20804), (15092, 17089), (15778, 16346)]