28261690

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{4409}}^1$

素因数の和:5057

約数の個数: 16

約数和(自身を含む): 50961960

約数和(自身を除く): 22700270

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 4409, 6410, 8818, 22045, 44090, 2826169, 5652338, 14130845, 28261690]

約数ペア:

[(1, 28261690), (2, 14130845), (5, 5652338), (10, 2826169), (641, 44090), (1282, 22045), (3205, 8818), (4409, 6410)]