257411390

素因数分解:

$2^1\times 5^1\times {\mathrm{2879}}^1\times {\mathrm{8941}}^1$

素因数の和:11827

約数の個数: 16

約数和(自身を含む): 463553280

約数和(自身を除く): 206141890

約数列:

[1, 2, 5, 10, 2879, 5758, 8941, 14395, 17882, 28790, 44705, 89410, 25741139, 51482278, 128705695, 257411390]

約数ペア:

[(1, 257411390), (2, 128705695), (5, 51482278), (10, 25741139), (2879, 89410), (5758, 44705), (8941, 28790), (14395, 17882)]