389125225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{8111}}^1$

素因数の和:8241

約数の個数: 24

約数和(自身を含む): 513002880

約数和(自身を除く): 123877655

約数列:

[1, 5, 19, 25, 95, 101, 475, 505, 1919, 2525, 8111, 9595, 40555, 47975, 154109, 202775, 770545, 819211, 3852725, 4096055, 15565009, 20480275, 77825045, 389125225]

約数ペア:

[(1, 389125225), (5, 77825045), (19, 20480275), (25, 15565009), (95, 4096055), (101, 3852725), (475, 819211), (505, 770545), (1919, 202775), (2525, 154109), (8111, 47975), (9595, 40555)]