81579365

素因数分解:

$5^1\times 7^2\times {\mathrm{433}}^1\times {\mathrm{769}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 114289560

約数和(自身を除く): 32710195

約数列:

[1, 5, 7, 35, 49, 245, 433, 769, 2165, 3031, 3845, 5383, 15155, 21217, 26915, 37681, 106085, 188405, 332977, 1664885, 2330839, 11654195, 16315873, 81579365]

約数ペア:

[(1, 81579365), (5, 16315873), (7, 11654195), (35, 2330839), (49, 1664885), (245, 332977), (433, 188405), (769, 106085), (2165, 37681), (3031, 26915), (3845, 21217), (5383, 15155)]