68737168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{997}}^1$

素因数の和:1175

約数の個数: 40

約数和(自身を含む): 138602240

約数和(自身を除く): 69865072

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 139, 248, 278, 496, 556, 997, 1112, 1994, 2224, 3988, 4309, 7976, 8618, 15952, 17236, 30907, 34472, 61814, 68944, 123628, 138583, 247256, 277166, 494512, 554332, 1108664, 2217328, 4296073, 8592146, 17184292, 34368584, 68737168]

約数ペア:

[(1, 68737168), (2, 34368584), (4, 17184292), (8, 8592146), (16, 4296073), (31, 2217328), (62, 1108664), (124, 554332), (139, 494512), (248, 277166), (278, 247256), (496, 138583), (556, 123628), (997, 68944), (1112, 61814), (1994, 34472), (2224, 30907), (3988, 17236), (4309, 15952), (7976, 8618)]