12918775

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 16829280

約数和(自身を除く): 3910505

約数列:

[1, 5, 25, 29, 103, 145, 173, 515, 725, 865, 2575, 2987, 4325, 5017, 14935, 17819, 25085, 74675, 89095, 125425, 445475, 516751, 2583755, 12918775]

約数ペア:

[(1, 12918775), (5, 2583755), (25, 516751), (29, 445475), (103, 125425), (145, 89095), (173, 74675), (515, 25085), (725, 17819), (865, 14935), (2575, 5017), (2987, 4325)]