78687815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 104255424

約数和(自身を除く): 25567609

約数列:

[1, 5, 17, 41, 67, 85, 205, 335, 337, 697, 1139, 1685, 2747, 3485, 5695, 5729, 13735, 13817, 22579, 28645, 46699, 69085, 112895, 233495, 234889, 383843, 925739, 1174445, 1919215, 4628695, 15737563, 78687815]

約数ペア:

[(1, 78687815), (5, 15737563), (17, 4628695), (41, 1919215), (67, 1174445), (85, 925739), (205, 383843), (335, 234889), (337, 233495), (697, 112895), (1139, 69085), (1685, 46699), (2747, 28645), (3485, 22579), (5695, 13817), (5729, 13735)]