201781690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20611}}^1$

素因数の和:20718

約数の個数: 32

約数和(自身を含む): 400697280

約数和(自身を除く): 198915590

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 20611, 41222, 103055, 206110, 226721, 453442, 1133605, 1834379, 2267210, 3668758, 9171895, 18343790, 20178169, 40356338, 100890845, 201781690]

約数ペア:

[(1, 201781690), (2, 100890845), (5, 40356338), (10, 20178169), (11, 18343790), (22, 9171895), (55, 3668758), (89, 2267210), (110, 1834379), (178, 1133605), (445, 453442), (890, 226721), (979, 206110), (1958, 103055), (4895, 41222), (9790, 20611)]