18818075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 24812400

約数和(自身を除く): 5994325

約数列:

[1, 5, 19, 25, 95, 173, 229, 475, 865, 1145, 3287, 4325, 4351, 5725, 16435, 21755, 39617, 82175, 108775, 198085, 752723, 990425, 3763615, 18818075]

約数ペア:

[(1, 18818075), (5, 3763615), (19, 990425), (25, 752723), (95, 198085), (173, 108775), (229, 82175), (475, 39617), (865, 21755), (1145, 16435), (3287, 5725), (4325, 4351)]