199907780

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{9403}}^1$

素因数の和:10475

約数の個数: 24

約数和(自身を含む): 420245952

約数和(自身を除く): 220338172

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 4252, 5315, 9403, 10630, 18806, 21260, 37612, 47015, 94030, 188060, 9995389, 19990778, 39981556, 49976945, 99953890, 199907780]

約数ペア:

[(1, 199907780), (2, 99953890), (4, 49976945), (5, 39981556), (10, 19990778), (20, 9995389), (1063, 188060), (2126, 94030), (4252, 47015), (5315, 37612), (9403, 21260), (10630, 18806)]