278047408

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{35393}}^1$

素因数の和:35892

約数の個数: 20

約数和(自身を含む): 539829288

約数和(自身を除く): 261781880

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 35393, 70786, 141572, 283144, 566288, 17377963, 34755926, 69511852, 139023704, 278047408]

約数ペア:

[(1, 278047408), (2, 139023704), (4, 69511852), (8, 34755926), (16, 17377963), (491, 566288), (982, 283144), (1964, 141572), (3928, 70786), (7856, 35393)]