99440780

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{4987}}^1$

素因数の和:5993

約数の個数: 24

約数和(自身を含む): 209077008

約数和(自身を除く): 109636228

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 4987, 9970, 9974, 19940, 19948, 24935, 49870, 99740, 4972039, 9944078, 19888156, 24860195, 49720390, 99440780]

約数ペア:

[(1, 99440780), (2, 49720390), (4, 24860195), (5, 19888156), (10, 9944078), (20, 4972039), (997, 99740), (1994, 49870), (3988, 24935), (4985, 19948), (4987, 19940), (9970, 9974)]