25945180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16421}}^1$

素因数の和:16509

約数の個数: 24

約数和(自身を含む): 55177920

約数和(自身を除く): 29232740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16421, 32842, 65684, 82105, 164210, 328420, 1297259, 2594518, 5189036, 6486295, 12972590, 25945180]

約数ペア:

[(1, 25945180), (2, 12972590), (4, 6486295), (5, 5189036), (10, 2594518), (20, 1297259), (79, 328420), (158, 164210), (316, 82105), (395, 65684), (790, 32842), (1580, 16421)]