19188440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20857}}^1$

素因数の和:20891

約数の個数: 32

約数和(自身を含む): 45053280

約数和(自身を除く): 25864840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20857, 41714, 83428, 104285, 166856, 208570, 417140, 479711, 834280, 959422, 1918844, 2398555, 3837688, 4797110, 9594220, 19188440]

約数ペア:

[(1, 19188440), (2, 9594220), (4, 4797110), (5, 3837688), (8, 2398555), (10, 1918844), (20, 959422), (23, 834280), (40, 479711), (46, 417140), (92, 208570), (115, 166856), (184, 104285), (230, 83428), (460, 41714), (920, 20857)]