2879780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1321}}^1$

素因数の和:1439

約数の個数: 24

約数和(自身を含む): 6107640

約数和(自身を除く): 3227860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1321, 2180, 2642, 5284, 6605, 13210, 26420, 143989, 287978, 575956, 719945, 1439890, 2879780]

約数ペア:

[(1, 2879780), (2, 1439890), (4, 719945), (5, 575956), (10, 287978), (20, 143989), (109, 26420), (218, 13210), (436, 6605), (545, 5284), (1090, 2642), (1321, 2180)]