278905930

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{255877}}^1$

素因数の和:255993

約数の個数: 16

約数和(自身を含む): 506638440

約数和(自身を除く): 227732510

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 255877, 511754, 1279385, 2558770, 27890593, 55781186, 139452965, 278905930]

約数ペア:

[(1, 278905930), (2, 139452965), (5, 55781186), (10, 27890593), (109, 2558770), (218, 1279385), (545, 511754), (1090, 255877)]