257876502

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 590768640

約数和(自身を除く): 332892138

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 439, 442, 443, 663, 878, 886, 1317, 1326, 1329, 2634, 2658, 5707, 5759, 7463, 7531, 11414, 11518, 14926, 15062, 17121, 17277, 22389, 22593, 34242, 34554, 44778, 45186, 97019, 97903, 194038, 194477, 195806, 291057, 293709, 388954, 582114, 583431, 587418, 1166862, 2528201, 3306109, 5056402, 6612218, 7584603, 9918327, 15169206, 19836654, 42979417, 85958834, 128938251, 257876502]

約数ペア:

[(1, 257876502), (2, 128938251), (3, 85958834), (6, 42979417), (13, 19836654), (17, 15169206), (26, 9918327), (34, 7584603), (39, 6612218), (51, 5056402), (78, 3306109), (102, 2528201), (221, 1166862), (439, 587418), (442, 583431), (443, 582114), (663, 388954), (878, 293709), (886, 291057), (1317, 195806), (1326, 194477), (1329, 194038), (2634, 97903), (2658, 97019), (5707, 45186), (5759, 44778), (7463, 34554), (7531, 34242), (11414, 22593), (11518, 22389), (14926, 17277), (15062, 17121)]