38720395

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 55443456

約数和(自身を除く): 16723061

約数列:

[1, 5, 7, 31, 35, 127, 155, 217, 281, 635, 889, 1085, 1405, 1967, 3937, 4445, 8711, 9835, 19685, 27559, 35687, 43555, 60977, 137795, 178435, 249809, 304885, 1106297, 1249045, 5531485, 7744079, 38720395]

約数ペア:

[(1, 38720395), (5, 7744079), (7, 5531485), (31, 1249045), (35, 1106297), (127, 304885), (155, 249809), (217, 178435), (281, 137795), (635, 60977), (889, 43555), (1085, 35687), (1405, 27559), (1967, 19685), (3937, 9835), (4445, 8711)]