25640514

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{20063}}^1$

素因数の和:20142

約数の個数: 24

約数和(自身を含む): 56339712

約数和(自身を除く): 30699198

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 20063, 40126, 60189, 120378, 180567, 361134, 1424473, 2848946, 4273419, 8546838, 12820257, 25640514]

約数ペア:

[(1, 25640514), (2, 12820257), (3, 8546838), (6, 4273419), (9, 2848946), (18, 1424473), (71, 361134), (142, 180567), (213, 120378), (426, 60189), (639, 40126), (1278, 20063)]