2640680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{9431}}^1$

素因数の和:9449

約数の個数: 32

約数和(自身を含む): 6791040

約数和(自身を除く): 4150360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 9431, 18862, 37724, 47155, 66017, 75448, 94310, 132034, 188620, 264068, 330085, 377240, 528136, 660170, 1320340, 2640680]

約数ペア:

[(1, 2640680), (2, 1320340), (4, 660170), (5, 528136), (7, 377240), (8, 330085), (10, 264068), (14, 188620), (20, 132034), (28, 94310), (35, 75448), (40, 66017), (56, 47155), (70, 37724), (140, 18862), (280, 9431)]