19461040

素因数分解:

$2^4\times 5^1\times {\mathrm{243263}}^1$

素因数の和:243276

約数の個数: 20

約数和(自身を含む): 45247104

約数和(自身を除く): 25786064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243263, 486526, 973052, 1216315, 1946104, 2432630, 3892208, 4865260, 9730520, 19461040]

約数ペア:

[(1, 19461040), (2, 9730520), (4, 4865260), (5, 3892208), (8, 2432630), (10, 1946104), (16, 1216315), (20, 973052), (40, 486526), (80, 243263)]