320691865

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{191}}^1\times {\mathrm{1987}}^1$

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 419102208

約数和(自身を除く): 98410343

約数列:

[1, 5, 13, 65, 169, 191, 845, 955, 1987, 2483, 9935, 12415, 25831, 32279, 129155, 161395, 335803, 379517, 1679015, 1897585, 4933721, 24668605, 64138373, 320691865]

約数ペア:

[(1, 320691865), (5, 64138373), (13, 24668605), (65, 4933721), (169, 1897585), (191, 1679015), (845, 379517), (955, 335803), (1987, 161395), (2483, 129155), (9935, 32279), (12415, 25831)]