25089025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 12408575

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 221, 239, 247, 323, 325, 425, 475, 1105, 1195, 1235, 1615, 3107, 4063, 4199, 4541, 5525, 5975, 6175, 8075, 15535, 20315, 20995, 22705, 52819, 59033, 77197, 77675, 101575, 104975, 113525, 264095, 295165, 385985, 1003561, 1320475, 1475825, 1929925, 5017805, 25089025]

約数ペア:

[(1, 25089025), (5, 5017805), (13, 1929925), (17, 1475825), (19, 1320475), (25, 1003561), (65, 385985), (85, 295165), (95, 264095), (221, 113525), (239, 104975), (247, 101575), (323, 77675), (325, 77197), (425, 59033), (475, 52819), (1105, 22705), (1195, 20995), (1235, 20315), (1615, 15535), (3107, 8075), (4063, 6175), (4199, 5975), (4541, 5525)]