201800656

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{19081}}^1$

素因数の和:19750

約数の個数: 20

約数和(自身を含む): 391600804

約数和(自身を除く): 189800148

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2644, 5288, 10576, 19081, 38162, 76324, 152648, 305296, 12612541, 25225082, 50450164, 100900328, 201800656]

約数ペア:

[(1, 201800656), (2, 100900328), (4, 50450164), (8, 25225082), (16, 12612541), (661, 305296), (1322, 152648), (2644, 76324), (5288, 38162), (10576, 19081)]