25443890

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{6221}}^1$

素因数の和:6637

約数の個数: 16

約数和(自身を含む): 45918360

約数和(自身を除く): 20474470

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 6221, 12442, 31105, 62210, 2544389, 5088778, 12721945, 25443890]

約数ペア:

[(1, 25443890), (2, 12721945), (5, 5088778), (10, 2544389), (409, 62210), (818, 31105), (2045, 12442), (4090, 6221)]