78839410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4363}}^1$

素因数の和:4522

約数の個数: 32

約数和(自身を含む): 153961920

約数和(自身を除く): 75122510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1390, 1807, 3614, 4363, 8726, 9035, 18070, 21815, 43630, 56719, 113438, 283595, 567190, 606457, 1212914, 3032285, 6064570, 7883941, 15767882, 39419705, 78839410]

約数ペア:

[(1, 78839410), (2, 39419705), (5, 15767882), (10, 7883941), (13, 6064570), (26, 3032285), (65, 1212914), (130, 606457), (139, 567190), (278, 283595), (695, 113438), (1390, 56719), (1807, 43630), (3614, 21815), (4363, 18070), (8726, 9035)]