26909180

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2099}}^1$

素因数の和:2749

約数の個数: 24

約数和(自身を含む): 56624400

約数和(自身を除く): 29715220

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2099, 2564, 3205, 4198, 6410, 8396, 10495, 12820, 20990, 41980, 1345459, 2690918, 5381836, 6727295, 13454590, 26909180]

約数ペア:

[(1, 26909180), (2, 13454590), (4, 6727295), (5, 5381836), (10, 2690918), (20, 1345459), (641, 41980), (1282, 20990), (2099, 12820), (2564, 10495), (3205, 8396), (4198, 6410)]