140145551

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 177408000

約数和(自身を除く): 37262449

約数列:

[1, 7, 13, 71, 91, 109, 199, 497, 763, 923, 1393, 1417, 2587, 6461, 7739, 9919, 14129, 18109, 21691, 54173, 98903, 100607, 151837, 183677, 281983, 704249, 1285739, 1540061, 1973881, 10780427, 20020793, 140145551]

約数ペア:

[(1, 140145551), (7, 20020793), (13, 10780427), (71, 1973881), (91, 1540061), (109, 1285739), (199, 704249), (497, 281983), (763, 183677), (923, 151837), (1393, 100607), (1417, 98903), (2587, 54173), (6461, 21691), (7739, 18109), (9919, 14129)]