638962376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1291}}^1\times {\mathrm{4759}}^1$

素因数の和:6069

約数の個数: 32

約数和(自身を含む): 1291483200

約数和(自身を除く): 652520824

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1291, 2582, 4759, 5164, 9518, 10328, 16783, 19036, 33566, 38072, 61867, 67132, 123734, 134264, 247468, 494936, 6143869, 12287738, 24575476, 49150952, 79870297, 159740594, 319481188, 638962376]

約数ペア:

[(1, 638962376), (2, 319481188), (4, 159740594), (8, 79870297), (13, 49150952), (26, 24575476), (52, 12287738), (104, 6143869), (1291, 494936), (2582, 247468), (4759, 134264), (5164, 123734), (9518, 67132), (10328, 61867), (16783, 38072), (19036, 33566)]