268540540

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{20947}}^1$

素因数の和:21597

約数の個数: 24

約数和(自身を含む): 564841872

約数和(自身を除く): 296301332

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 20947, 41894, 83788, 104735, 209470, 418940, 13427027, 26854054, 53708108, 67135135, 134270270, 268540540]

約数ペア:

[(1, 268540540), (2, 134270270), (4, 67135135), (5, 53708108), (10, 26854054), (20, 13427027), (641, 418940), (1282, 209470), (2564, 104735), (3205, 83788), (6410, 41894), (12820, 20947)]