19867825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{277}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 26198720

約数和(自身を除く): 6330895

約数列:

[1, 5, 19, 25, 95, 151, 277, 475, 755, 1385, 2869, 3775, 5263, 6925, 14345, 26315, 41827, 71725, 131575, 209135, 794713, 1045675, 3973565, 19867825]

約数ペア:

[(1, 19867825), (5, 3973565), (19, 1045675), (25, 794713), (95, 209135), (151, 131575), (277, 71725), (475, 41827), (755, 26315), (1385, 14345), (2869, 6925), (3775, 5263)]