639870147346

素因数分解:

$2^1\times {\mathrm{643}}^1\times {\mathrm{7211}}^1\times {\mathrm{69001}}^1$

素因数の和:76857

約数の個数: 16

約数和(自身を含む): 961445163168

約数和(自身を除く): 321575015822

約数列:

[1, 2, 643, 1286, 7211, 14422, 69001, 138002, 4636673, 9273346, 44367643, 88735286, 497566211, 995132422, 319935073673, 639870147346]

約数ペア:

[(1, 639870147346), (2, 319935073673), (643, 995132422), (1286, 497566211), (7211, 88735286), (14422, 44367643), (69001, 9273346), (138002, 4636673)]