12881075

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 16777200

約数和(自身を除く): 3896125

約数列:

[1, 5, 25, 29, 109, 145, 163, 545, 725, 815, 2725, 3161, 4075, 4727, 15805, 17767, 23635, 79025, 88835, 118175, 444175, 515243, 2576215, 12881075]

約数ペア:

[(1, 12881075), (5, 2576215), (25, 515243), (29, 444175), (109, 118175), (145, 88835), (163, 79025), (545, 23635), (725, 17767), (815, 15805), (2725, 4727), (3161, 4075)]