138781168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{456517}}^1$

素因数の和:456544

約数の個数: 20

約数和(自身を含む): 283041160

約数和(自身を除く): 144259992

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 456517, 913034, 1826068, 3652136, 7304272, 8673823, 17347646, 34695292, 69390584, 138781168]

約数ペア:

[(1, 138781168), (2, 69390584), (4, 34695292), (8, 17347646), (16, 8673823), (19, 7304272), (38, 3652136), (76, 1826068), (152, 913034), (304, 456517)]