20178247780

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6681539}}^1$

素因数の和:6681699

約数の個数: 24

約数和(自身を含む): 42654951360

約数和(自身を除く): 22476703580

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6681539, 13363078, 26726156, 33407695, 66815390, 133630780, 1008912389, 2017824778, 4035649556, 5044561945, 10089123890, 20178247780]

約数ペア:

[(1, 20178247780), (2, 10089123890), (4, 5044561945), (5, 4035649556), (10, 2017824778), (20, 1008912389), (151, 133630780), (302, 66815390), (604, 33407695), (755, 26726156), (1510, 13363078), (3020, 6681539)]