61981900

素因数分解:

$2^2\times 5^2\times {\mathrm{619819}}^1$

素因数の和:619833

約数の個数: 18

約数和(自身を含む): 134500940

約数和(自身を除く): 72519040

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 619819, 1239638, 2479276, 3099095, 6198190, 12396380, 15495475, 30990950, 61981900]

約数ペア:

[(1, 61981900), (2, 30990950), (4, 15495475), (5, 12396380), (10, 6198190), (20, 3099095), (25, 2479276), (50, 1239638), (100, 619819)]