78420139

素因数分解:

$7^2\times {\mathrm{71}}^1\times {\mathrm{22541}}^1$

素因数の和:22626

約数の個数: 12

約数和(自身を含む): 92512368

約数和(自身を除く): 14092229

約数列:

[1, 7, 49, 71, 497, 3479, 22541, 157787, 1104509, 1600411, 11202877, 78420139]

約数ペア:

[(1, 78420139), (7, 11202877), (49, 1600411), (71, 1104509), (497, 157787), (3479, 22541)]