639975841

素因数分解:

${\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1\times {\mathrm{877}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 681328000

約数和(自身を除く): 41352159

約数列:

[1, 19, 193, 199, 877, 3667, 3781, 16663, 38407, 169261, 174523, 729733, 3215959, 3315937, 33682939, 639975841]

約数ペア:

[(1, 639975841), (19, 33682939), (193, 3315937), (199, 3215959), (877, 729733), (3667, 174523), (3781, 169261), (16663, 38407)]