12978425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 17186400

約数和(自身を除く): 4207975

約数列:

[1, 5, 19, 25, 89, 95, 307, 445, 475, 1535, 1691, 2225, 5833, 7675, 8455, 27323, 29165, 42275, 136615, 145825, 519137, 683075, 2595685, 12978425]

約数ペア:

[(1, 12978425), (5, 2595685), (19, 683075), (25, 519137), (89, 145825), (95, 136615), (307, 42275), (445, 29165), (475, 27323), (1535, 8455), (1691, 7675), (2225, 5833)]