256206444

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1709}}^1$

素因数の和:1791

約数の個数: 72

約数和(自身を含む): 665627760

約数和(自身を除く): 409421316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 961, 1209, 1612, 1709, 1922, 2418, 2883, 3418, 3844, 4836, 5127, 5766, 6836, 10254, 11532, 12493, 20508, 22217, 24986, 37479, 44434, 49972, 52979, 66651, 74958, 88868, 105958, 133302, 149916, 158937, 211916, 266604, 317874, 635748, 688727, 1377454, 1642349, 2066181, 2754908, 3284698, 4132362, 4927047, 6569396, 8264724, 9854094, 19708188, 21350537, 42701074, 64051611, 85402148, 128103222, 256206444]

約数ペア:

[(1, 256206444), (2, 128103222), (3, 85402148), (4, 64051611), (6, 42701074), (12, 21350537), (13, 19708188), (26, 9854094), (31, 8264724), (39, 6569396), (52, 4927047), (62, 4132362), (78, 3284698), (93, 2754908), (124, 2066181), (156, 1642349), (186, 1377454), (372, 688727), (403, 635748), (806, 317874), (961, 266604), (1209, 211916), (1612, 158937), (1709, 149916), (1922, 133302), (2418, 105958), (2883, 88868), (3418, 74958), (3844, 66651), (4836, 52979), (5127, 49972), (5766, 44434), (6836, 37479), (10254, 24986), (11532, 22217), (12493, 20508)]