27720336425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{8647}}^1$

素因数の和:9090

約数の個数: 48

約数和(自身を含む): 38411648640

約数和(自身を除く): 10691312215

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 397, 425, 475, 1615, 1985, 6749, 7543, 8075, 8647, 9925, 33745, 37715, 43235, 128231, 146999, 164293, 168725, 188575, 216175, 641155, 734995, 821465, 2792981, 3205775, 3432859, 3674975, 4107325, 13964905, 17164295, 58358603, 65224321, 69824525, 85821475, 291793015, 326121605, 1108813457, 1458965075, 1630608025, 5544067285, 27720336425]

約数ペア:

[(1, 27720336425), (5, 5544067285), (17, 1630608025), (19, 1458965075), (25, 1108813457), (85, 326121605), (95, 291793015), (323, 85821475), (397, 69824525), (425, 65224321), (475, 58358603), (1615, 17164295), (1985, 13964905), (6749, 4107325), (7543, 3674975), (8075, 3432859), (8647, 3205775), (9925, 2792981), (33745, 821465), (37715, 734995), (43235, 641155), (128231, 216175), (146999, 188575), (164293, 168725)]