257127975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5171}}^1$

素因数の和:5217

約数の個数: 72

約数和(自身を含む): 525247632

約数和(自身を除く): 268119657

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 585, 663, 765, 975, 1105, 1275, 1989, 2925, 3315, 3825, 5171, 5525, 9945, 15513, 16575, 25855, 46539, 49725, 67223, 77565, 87907, 129275, 201669, 232695, 263721, 336115, 387825, 439535, 605007, 791163, 1008345, 1142791, 1163475, 1318605, 1680575, 2197675, 3025035, 3428373, 3955815, 5041725, 5713955, 6593025, 10285119, 15125175, 17141865, 19779075, 28569775, 51425595, 85709325, 257127975]

約数ペア:

[(1, 257127975), (3, 85709325), (5, 51425595), (9, 28569775), (13, 19779075), (15, 17141865), (17, 15125175), (25, 10285119), (39, 6593025), (45, 5713955), (51, 5041725), (65, 3955815), (75, 3428373), (85, 3025035), (117, 2197675), (153, 1680575), (195, 1318605), (221, 1163475), (225, 1142791), (255, 1008345), (325, 791163), (425, 605007), (585, 439535), (663, 387825), (765, 336115), (975, 263721), (1105, 232695), (1275, 201669), (1989, 129275), (2925, 87907), (3315, 77565), (3825, 67223), (5171, 49725), (5525, 46539), (9945, 25855), (15513, 16575)]