12788275

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 16963200

約数和(自身を除く): 4174925

約数列:

[1, 5, 25, 29, 31, 145, 155, 569, 725, 775, 899, 2845, 4495, 14225, 16501, 17639, 22475, 82505, 88195, 412525, 440975, 511531, 2557655, 12788275]

約数ペア:

[(1, 12788275), (5, 2557655), (25, 511531), (29, 440975), (31, 412525), (145, 88195), (155, 82505), (569, 22475), (725, 17639), (775, 16501), (899, 14225), (2845, 4495)]