78317409

素因数分解:

$3^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1\times {\mathrm{647}}^1$

素因数の和:1064

約数の個数: 16

約数和(自身を含む): 105660288

約数和(自身を除く): 27342879

約数列:

[1, 3, 157, 257, 471, 647, 771, 1941, 40349, 101579, 121047, 166279, 304737, 498837, 26105803, 78317409]

約数ペア:

[(1, 78317409), (3, 26105803), (157, 498837), (257, 304737), (471, 166279), (647, 121047), (771, 101579), (1941, 40349)]