2420890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2221}}^1$

素因数の和:2337

約数の個数: 16

約数和(自身を含む): 4399560

約数和(自身を除く): 1978670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 2221, 4442, 11105, 22210, 242089, 484178, 1210445, 2420890]

約数ペア:

[(1, 2420890), (2, 1210445), (5, 484178), (10, 242089), (109, 22210), (218, 11105), (545, 4442), (1090, 2221)]