19680420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328007}}^1$

素因数の和:328019

約数の個数: 24

約数和(自身を含む): 55105344

約数和(自身を除く): 35424924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328007, 656014, 984021, 1312028, 1640035, 1968042, 3280070, 3936084, 4920105, 6560140, 9840210, 19680420]

約数ペア:

[(1, 19680420), (2, 9840210), (3, 6560140), (4, 4920105), (5, 3936084), (6, 3280070), (10, 1968042), (12, 1640035), (15, 1312028), (20, 984021), (30, 656014), (60, 328007)]