19050220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2777}}^1$

素因数の和:2807

約数の個数: 48

約数和(自身を含む): 46670400

約数和(自身を除く): 27620180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2777, 3430, 5554, 6860, 11108, 13885, 19439, 27770, 38878, 55540, 77756, 97195, 136073, 194390, 272146, 388780, 544292, 680365, 952511, 1360730, 1905022, 2721460, 3810044, 4762555, 9525110, 19050220]

約数ペア:

[(1, 19050220), (2, 9525110), (4, 4762555), (5, 3810044), (7, 2721460), (10, 1905022), (14, 1360730), (20, 952511), (28, 680365), (35, 544292), (49, 388780), (70, 272146), (98, 194390), (140, 136073), (196, 97195), (245, 77756), (343, 55540), (490, 38878), (686, 27770), (980, 19439), (1372, 13885), (1715, 11108), (2777, 6860), (3430, 5554)]