18661325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2311}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 25801920

約数和(自身を除く): 7140595

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2311, 8075, 11555, 39287, 43909, 57775, 196435, 219545, 746453, 982175, 1097725, 3732265, 18661325]

約数ペア:

[(1, 18661325), (5, 3732265), (17, 1097725), (19, 982175), (25, 746453), (85, 219545), (95, 196435), (323, 57775), (425, 43909), (475, 39287), (1615, 11555), (2311, 8075)]