81883945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 117137664

約数和(自身を除く): 35253719

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 1613, 3905, 4615, 8065, 10153, 17743, 20969, 50765, 88715, 104845, 114523, 230659, 572615, 1153295, 1259753, 1488799, 6298765, 7443995, 16376789, 81883945]

約数ペア:

[(1, 81883945), (5, 16376789), (11, 7443995), (13, 6298765), (55, 1488799), (65, 1259753), (71, 1153295), (143, 572615), (355, 230659), (715, 114523), (781, 104845), (923, 88715), (1613, 50765), (3905, 20969), (4615, 17743), (8065, 10153)]