78168515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{7103}}^1$

素因数の和:7210

約数の個数: 16

約数和(自身を含む): 98205696

約数和(自身を除く): 20037181

約数列:

[1, 5, 31, 71, 155, 355, 2201, 7103, 11005, 35515, 220193, 504313, 1100965, 2521565, 15633703, 78168515]

約数ペア:

[(1, 78168515), (5, 15633703), (31, 2521565), (71, 1100965), (155, 504313), (355, 220193), (2201, 35515), (7103, 11005)]