51297580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{23531}}^1$

素因数の和:23649

約数の個数: 24

約数和(自身を含む): 108717840

約数和(自身を除く): 57420260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 23531, 47062, 94124, 117655, 235310, 470620, 2564879, 5129758, 10259516, 12824395, 25648790, 51297580]

約数ペア:

[(1, 51297580), (2, 25648790), (4, 12824395), (5, 10259516), (10, 5129758), (20, 2564879), (109, 470620), (218, 235310), (436, 117655), (545, 94124), (1090, 47062), (2180, 23531)]