19749550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20789}}^1$

素因数の和:20820

約数の個数: 24

約数和(自身を含む): 38669400

約数和(自身を除く): 18919850

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 20789, 41578, 103945, 207890, 394991, 519725, 789982, 1039450, 1974955, 3949910, 9874775, 19749550]

約数ペア:

[(1, 19749550), (2, 9874775), (5, 3949910), (10, 1974955), (19, 1039450), (25, 789982), (38, 519725), (50, 394991), (95, 207890), (190, 103945), (475, 41578), (950, 20789)]