12642215

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{463}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 15679488

約数和(自身を除く): 3037273

約数列:

[1, 5, 43, 127, 215, 463, 635, 2315, 5461, 19909, 27305, 58801, 99545, 294005, 2528443, 12642215]

約数ペア:

[(1, 12642215), (5, 2528443), (43, 294005), (127, 99545), (215, 58801), (463, 27305), (635, 19909), (2315, 5461)]