259202380

素因数分解:

$2^2\times 5^1\times {\mathrm{12960119}}^1$

素因数の和:12960128

約数の個数: 12

約数和(自身を含む): 544325040

約数和(自身を除く): 285122660

約数列:

[1, 2, 4, 5, 10, 20, 12960119, 25920238, 51840476, 64800595, 129601190, 259202380]

約数ペア:

[(1, 259202380), (2, 129601190), (4, 64800595), (5, 51840476), (10, 25920238), (20, 12960119)]