780147284

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{219389}}^1$

素因数の和:219527

約数の個数: 24

約数和(自身を含む): 1572587520

約数和(自身を除く): 792440236

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 219389, 438778, 877556, 1535723, 3071446, 6142892, 27862403, 55724806, 111449612, 195036821, 390073642, 780147284]

約数ペア:

[(1, 780147284), (2, 390073642), (4, 195036821), (7, 111449612), (14, 55724806), (28, 27862403), (127, 6142892), (254, 3071446), (508, 1535723), (889, 877556), (1778, 438778), (3556, 219389)]