3939560

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 8937000

約数和(自身を除く): 4997440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 661, 745, 1192, 1322, 1490, 2644, 2980, 3305, 5288, 5960, 6610, 13220, 26440, 98489, 196978, 393956, 492445, 787912, 984890, 1969780, 3939560]

約数ペア:

[(1, 3939560), (2, 1969780), (4, 984890), (5, 787912), (8, 492445), (10, 393956), (20, 196978), (40, 98489), (149, 26440), (298, 13220), (596, 6610), (661, 5960), (745, 5288), (1192, 3305), (1322, 2980), (1490, 2644)]