1890025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 2589120

約数和(自身を除く): 699095

約数列:

[1, 5, 19, 23, 25, 95, 115, 173, 437, 475, 575, 865, 2185, 3287, 3979, 4325, 10925, 16435, 19895, 75601, 82175, 99475, 378005, 1890025]

約数ペア:

[(1, 1890025), (5, 378005), (19, 99475), (23, 82175), (25, 75601), (95, 19895), (115, 16435), (173, 10925), (437, 4325), (475, 3979), (575, 3287), (865, 2185)]