19432880

素因数分解:

$2^4\times 5^1\times {\mathrm{242911}}^1$

素因数の和:242924

約数の個数: 20

約数和(自身を含む): 45181632

約数和(自身を除く): 25748752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242911, 485822, 971644, 1214555, 1943288, 2429110, 3886576, 4858220, 9716440, 19432880]

約数ペア:

[(1, 19432880), (2, 9716440), (4, 4858220), (5, 3886576), (8, 2429110), (10, 1943288), (16, 1214555), (20, 971644), (40, 485822), (80, 242911)]