25931300

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{1009}}^1$

素因数の和:1280

約数の個数: 36

約数和(自身を含む): 56545860

約数和(自身を除く): 30614560

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 1009, 1028, 1285, 2018, 2570, 4036, 5045, 5140, 6425, 10090, 12850, 20180, 25225, 25700, 50450, 100900, 259313, 518626, 1037252, 1296565, 2593130, 5186260, 6482825, 12965650, 25931300]

約数ペア:

[(1, 25931300), (2, 12965650), (4, 6482825), (5, 5186260), (10, 2593130), (20, 1296565), (25, 1037252), (50, 518626), (100, 259313), (257, 100900), (514, 50450), (1009, 25700), (1028, 25225), (1285, 20180), (2018, 12850), (2570, 10090), (4036, 6425), (5045, 5140)]